The thing about landscape improvements is that most people who buy a house expect it to have at least some landscaping, and certainly expect a sidewalk, so they will not pay extra for it. Kind of like a roof. They expect a serviceable roof, so while they may deduct for the cost of replacing a bad roof, it doesn't necessarily mean you can add the replacement cost to the sale price if you do it ahead of time. In addition, a new owner will probably have her own ideas about what kind of landscaping is suitable, and tear out and replace much of what you've done, unless you are putting in a really spectacular, high end job that's so wonderful that they wouldn't want to change it. You don't give any hints as to your location, but zone 6 gets snow, and you'll have to be able to clear the walk in winter. Stepping stones are OK for a casual secondary path through a garden, but the approach to the house, especially for strangers to the layout, should be as direct and clear as possible, and hazard free. The minimum width for walkway should be 4 feet, IMO, and 5 is better if you have the space. It's unpleasant to have to go to the door in single file, and a problem if Aunt Bessie needs someone offer her an arm on the way in. You end up looking something like a conga line. I would forget about a flower bed against the house, and either plant groundcover or a few annuals at most. Anything tall will fall over onto the walk, especially as it leans out for more light. Shrubs will require constant trimming and will end up looking nasty. The cost of installing a new walkway depends on materials you choose, the size of the project, how much grading/prep work is required, demolition of the old walk, and the skill level of the installer. An experience artisan will cost more than a guy with a pickup truck and an account at Dome Heapo. Add the cost, if any, for dumping the waste you break up. You must be young folks, because I wouldn't want to demolish a concrete walk and install a new one without outside help.

How good of you to take on this task! Do you have the kids help? (that can be fun too, to run it as an after school activity.) If there are flat rocks in your area, you could collect some (or alternatively keep an eye out on Craigslist for free used bricks) and use them set hozontally along the edge of the paving as deep as seems necessary (sort of widening the paving.) Leave a couple inches of spacing between the rocks and plant between the rocks with plants that can crawl onto them. That way there would be a sort of transition zone of plants that would survive being walked on since the roots would be protected, but also give a bit of warning to the kids that they were off the standard paving. The rocks or bricks will keep the plow from dropping down into the dirt and uprooting the plants and being flat shouldn't pose too much of a problem for the plow (or at least that's my experience since the plow went right over my flat brick edging a few years.) Wooly thyme doesn't seem to flower much in my garden, so might work. Some of the shorter Carex (sedges) may work, especially variegated ones like 'Ice Dance.' Astilbe chinensis 'Pumila' grows low and spreads, but flowers in August and doesn't seem to draw bees. Lady's mantle has such subtle flowers that no one will probably notice them, and has both a larger variety and a smaller one. You could also use some shrubby low groundcovers like Paxistma canbyi (no flowers usually), cranberry (tiny flowers), bearberry (Arctostaphylos) or one of the low growing winter heaths or heathers if your soil is a bit acidic. Many heathers have colorful foliage. Just check the flowering time of your particular cultivar and be sure it is during the summer. The shrubby plants you would have to plant back from the sidewalk far enough that the plow and kids won't mangle the center of growth and so that it won't grow onto the sidewalk. I don't know the salt tolerance of most of these since I don't salt the walk, but I do know that heaths and heathers seem to be pretty salt tolerant. As far as the budget . . . Once you decide on your groundcover, if it is one of the more common ones, you can check with the principal about sending home a request for donations of that type of plant. S/he may be supportive of this.

Lilyfinch, you remind me of my dad with the veggies. Those are the only 3 he will eat. When my folks had moved my dad really wanted to experiment with a veggie garden. My mom told him if he grew it, he had to eat it. When I visited that summer and saw him eating a salad I almost choked!! He had held up his end of the bargain, but only had a veggie garden for that one year!! LOL!! Your front yard is great. I agree with widening the paths. How wide are the paths now? Could you widen them enough to incorporate the lamp post into the path? You could also have them undulate a little, but still symmetrical if you want it to be a little less formal. I would even consider at the end of the path at the house flaring the path on each side out to incorporate the area in front of your house and porch. How long is the walkway? It looks long enough that you can repeat groups of perennials. There are some great single-blooming peonies that would be pretty (and no staking), especially if planted with some May-Night Salvia and Iberis. That makes a nice little spring combo. Sedums like Autumn Joy or Matrona would give some interest down the path well into fall and even winter if you don't cut them back. Also some grasses might be nice too, like Hakonechloa. I have also fallen in love with Solidago 'Golden Fleece' planted with low purple asters. Mix in a Fairy Rose and it's magical! Have you thought about shrubs at all? If you are able to widen the path and you don't think an arbor will work for you at the end, what about a dwarf alberta spruce at the entry on each side? Also there are some small spirea like Little Princess that work in a narrow border. Hypericum Hidcote may be a nice yellow that has quite a long bloom period. Mine seemed to never want to stop and hasn't gotten to be taller than about 2'. Crimson Pygmy Barberry is a great smaller shrub with a nice color. What a great area you have to play around with. Have fun!!!

Why do you need to replace the stoop? It looks solid. It's surface is not great, but that can be overcome in a variety of ways. The walk is inferior ... too small. Possibly its path could be improved if one had a comprehensive understanding of the overall landscape scheme. The grade of the yard is falling away too soon at the left side of the house. If it were me, I'd want a more upscale and stable look. It would be helpful if you'd return to the same spot the whole-house picture was taken. Where the photo leaves off, add another picture that shows what we can't see beyond the right and left edges. We need to see a comprehensive view of whole house plus some space at its ends. (Add to the existing photo above. If you back up in order to add on, everything will be too far away to see well.)