I just did an inventory. I have at work in my cubicle:
8 button up dress shirts
5 pairs trousers
2 fancy sweaters
5 T shirts
9 golf shirts
2 pairs socks
1 tie
1 blazer
1 overcoat
2 pairs leather shoes
1 belt
1 box baby wipes
1 bottle febreeze
1 comb
(seriously I have all this within 3 feet of me)

I never ride in my work clothes because I generally pay to have them drycleaned or laundered downstairs. The less physical activity the more wearings I can get out of each garment. They also have time to 'mellow' as it were in between wearings as I have so many to cycle through. Wearing a fresh t-shirt under them helps immensely too.

I change in my cubicle and haveonly been walked in on a couple of times. Changing in a washroom stall every day is not something you want to do... My coworkers ten to avoid my office until about a half hour after I get in specifically to minimize seeing me without a shirt on.

We have really nice bike racks in the basement that lock up both wheels with shackles and hand the bike vertically against the wall. Its near the security people and has a camera pointed at it so there basically no way my bike could get stolen during work.