I use Noreen clothes to wipe whatever I can - they can pick up bacteria and kill it as it dries. I use them a lot!

If its a really serious thing I'll soak plastic toys in a bathtub of bleach solution (usually pretty diluted as I'm not a fan of using it regularly). Anything that can go in the washer does, and dried on hot usually kills most things as well.

I recently got into melaleuca too - they have a lot of natural and Eco friendly products - including a spray disinfectant. It is a bit of a pain to buy their products though - involves signing up for a minimum monthly purchase :/.