I'd like to buy a few small accessories for my T2i. I'd like to start small and experiment with things like filters, flower lens hoods and stuff like that before I start looking for more lenses etc. Who makes decent quality filters and what should I stay away from? The flower lens hood isn't that hard to pick out since it basically a static mechanical item. Also, who makes a good lens cleaning kit (and/or items)?
I'll also take any suggestions for "must have" items that don't cost much but that you just have to have.