Let your flowers mature, turn brown, and dry. Then you can cut the stalks and shake seeds into a bag. The seeds are very small and take a while to germinate in the spring, but once you plant one plant, you wind up with a pretty good patch of it. It reseeds pretty well if you want to keep it in the same area(or pot). I have put large rocks around the smaller plants to keep neighborhood(and my own)cats from rubbing it into the ground. Once the plants get above the rocks, the cats can roll in it all they want and it will survive. If your cuttings won't root in water, you may try sticking new cuttings in a small pot of moist medium and keeping it in the shade for a while until you see new growth. You could also try it with and without rooting hormone and see which works best. I have never rooted catnip cuttings. I'm sure you will get responses from those that have.

Back in the days I had a cat, I always kept the catnip in the freezer. The stuff would keep for a while that way, but I don't think I ever had stuff last more than 6-8 months. If you decide not to save them, you could always consider donating them to your local animal shelter.

Let's get this post off the top.

There is no bobbin to this little machine. It makes a chain stitch. In order to do this there is a lever underneath the catches the thread. The way it is designed the lever hits the needle and eventually over time the needle form a permanent bend. This will prevent it from catching the thread. What you need to do at this point is to replace the needle. The 24x3 is no longer manufactured. You can order a 24 x1 which is the replacement the size 11 works best. Remember that the flat part of the substitute is on the opposite side from the original 24 x3.