earlier today i was messing around with my d40x at f/8 and i noticed there was what appeared to be a strand of hair on the top left of the picture. i took off my lens and flipped up the mirror, and sure enough theres a piece of hair on my sensor. what's the best way of getting rid of this? it's pretty annoying and i'd like to get rid of it as soon as possible but i don't have a sensor cleaning kit or blower. is there anything around my house i could use to get rid of this?