get a coat hook and hang it under your desk, like they do at bars for ladies purses, that way you can hang your stuff without it being obvious. then, get a small fan and point it at your jersey/shorts, and they will be dry and odor free in like an hour (assuming you commute in cycling kit). I do this in my own office, and it works like a charm. as long as you wash your shorts and use a fresh jersey every day, you should have no issues. FWIW I also keep cologne, deodorant, and fresh clothes (especially socks and underwear) at work, and I've never had an issue.