Not to discourage your thinking about it - but don't take it to the point of sillyness.
You absolutely need to take all the precautions necessary with your food and other "smellibles" like toothpaste and deodorant and toiletries. But under normal situations I wouldn't worry about clothing too much. If you were to spill a bag full of food down the front of yourself, yes, I'd make some good effort to wash those clothes, but realisticly face it - you stink. As long as you stink mostly like a human everything is
fine. I don't worry about the clothes I cook in. I do not cook in my shelter or anywhere
near it. Realisticly, remember, I'm going to smell just from my body odor, and
frankly, every time I fart <img src="/forums/images/graemlins/wink.gif" alt="" />

Do take appropriate precautions with food - store it properly, cook it away from anywhere you are sleeping.

Don't panic or take it to the level that you aren't going to have any fun. I wear most
of my clothing at night <img src="/forums/images/graemlins/wink.gif" alt="" />