What Do I Do With My Smelly Gym Clothes In Between Laundry Days?

I have a problem — I’m dependent on going to the laundromat to wash my gym clothes so I can’t wash them right away. How do I handle a build up of sweaty clothes when I can reasonably only wash them once a week? Do I start a soak bucket of water and vinegar and just throw them in there and let them accumulate? Do I…