There's no rule saying you can't mix vegetables and ornamentals in the same garden. Furthermore, some gardeners line out ornamentals in the vegetable garden while they bulk up or until space becomes available elsewhere. Providing each has sufficient space and ornamentals do not interfere with cultivation and harvesting there is no problem.

I think the concerns expressed about watering daily are very valid. It's extremely unusual for any indoor plant to truly need a drink every day, unheard of for succulents. As mentioned above, the presence of moss indicates a high level of organic ingredients in the pot, and constant moisture for a while. The one sure way to water succulents is to keep the soil constantly moist/soggy. I hope it pulls through for you, such a cute little thing, but it looks like it's on deaths' door to me. The plant in the lower left corner of the Tilly pic is concerning because of the dying tips. Is it a Sansevieria? Almost all plants come from stores in pots of peat (nearly weightless when dry, easy to ship.) Not something unusual this particular store did. Tillandia grow on trees, without any roots, no soil. If you have a larger plant to 'perch' it in, that would help with the humidity. You could also fashion a wire 'hammock' to stick in the dirt of another pot, so Tilly's has a spot above the soil (where moisture is evaporating, plants are transpiring.) Your air probably moves around whenever the furnace or A/C comes on. If the humidity is low, I probably wouldn't try to increase air movement, which would cause the plant to dry faster. Are you able to put plants outside when it warms up?

Aeonium? But I've never seen such a striking black line on the leaf before!

Looks like this one, notice that others shown below have also apparently grown sideways in time. Otherwise you could try inserting a circle of some small bamboo stakes near the pot walls, tying the errant appearing stems to those. http://www.bing.com/images/search?q=peperomia+obtusifolia&qpvt=peperomia+obtusifolia&FORM=IARRSM Like many house plants these do best with reduced watering in winter. This particular example also seems due for moving up into a larger pot with fresh potting medium this coming spring. Peperomias need a lightweight mixture that contains perlite or gravel.