Around our house we eat a lot of yogurt in small cups as well as from the larger containers, but the City of Norfolk guidelines for recycling state specifically: NO Wide-Mouth Plastic Containers (such as those for yogurt and butter). It seems a waste to just trash these nice cups, so we wash them and stack them in the garage. During the winter months we make seedling cups from the small ones. The larger ones we use for transplants. All you have to do is poke a few holes in the bottom for drainage.
Those cups we do not reuse, we collect and take to the Green Alternatives store down in in Ghent (1905 Colonial Avenue). The Green Alternatives folks collect these cups and ship them out for recycling as... [ta dah] seedling cups. If you don't want to bother making your own seedling cups from your used yogurt cups, then consider collecting your cleaned cups and dropping them off at the Green Alternatives store.
Also, from the Just So You Know department: the folks at Green Alternatives also accept all kinds of electronics for PROPER electronics recycling--computers, monitors, cellphones--as well as batteries. And the store carries compostable plastic tableware and paper plates made from 100% post consumer recycled paper for your parties, picnics, and barbecues. As a test I put used paper plates and compostable plasticware into both my compost pile and my worm bin. I'll report back on how they do.