I ride 4 days a week. I have a small closet of clothes and toiletries at work. Bring in food and change out pressed clothes on the driving days.
I shower after riding home (or before leaving in the AM if i drove the prev day). Ride in cycling gear, change at work into nice pressed and clean clothes. Deoderize/cologne and eve shave if i need to. Change at the end of day, leave work clothes at work and ride home. May sound weird but I get at least two wears out of my work clothes because I don't do anything "dirty" or sweaty at work.

Works great and with 5 pants/jeans and 5 shirts/polos I can have an alternating combination of outfits all the time. No worries here, works great. No stank.