I am trying to figure out how to fit in running, swimming, and weight training. (Biking gets done in very small amounts as transportation, and long rides on weekends.) I thought I might bike to work, run the 1 mile to the pool, swim, and run back to work and change. I asked if I could rent a locker at the pool but they don't let you leave things in them overnight. They had a problem with roaches once.

Any suggestions of what to use to carry stuff while running? Running is SO bouncy!