This would be a long post if I went into detail about how my OCD affects me, but I'll share a few things:

Dust is a problem for me. I dust most things in my room every few days (it used to be every day, but I've recently made an improvement), because I can't handle dust collecting on things. I have a dusty lamp, for instance, and can't clean it, because the dust will be spread around. I get very upset if a bug gets on my lap and flies around in it, spreading the dust. I keep most stuff of mine in Ziploc-type bags and if I think dust has gotten on them, I have to take my stuff out of the bags and put them in new bags.

Right now, with the hurricane we're supposed to get, I'm worried that windows will break (and get stuff on my things, including dust, and pieces of glass would touch my stuff, which is a problem for me), or even just shake dust all over the place (my curtains are dusty), I worry about possibly a tree falling onto the roof and it would likely be in my room, and I could lose my stuff because of all the stuff coming in contact with things I consider dirty.

I obsess mostly about being dirty, but I don't mean dirty in the classic way, at least not totally. I don't like to touch people for fear of getting their body oils, skin flakes, etc., on me. I don't worry that I'm going to get sick and die if I touch germs, but just the touching of dirt or germs bothers me; I just don't know why.