The Girl and I both are qualified to comment on this subject. We have both logged many hours cleaning up after smelly gamers. The Girl worked in a game store for quite a while and I owned game stores for a number of years. You would think that if gamers left that much of a mess at home that their parents would force them to live in the basement........OHHH, that's how that stereotype got started. Amazing how that works isn't it?
The next time you go to the game store take a shower, use soap and shampoo, apply deodorant, and pick up your 16 candy bar wrappers, 6 soda bottles, and numerous chip bags and throw them away in that can that the employees use for trash. Do this and see if people treat you better. You might be surprised.
Get clean, smell good, and go roll some dice!