wear less
bring a plastic garbage bag
when you arrive - strip and put everything in the bag, close it up airtight and bring it home that night
bring fresh clothes to wear at the office - or stock up in advance
make night or weekend or 1 day per week trips with a car to shuffle the work clothes
once those "ride-in" clothes are sweaty - consider them done for the day and don't even look at them again
don't forget your hygiene - shower at work or if you can't
shower before you leave home then use a washcloth for a sink wash at work
arrive early so you have privacy
leave early to avoid traffic going home
wear unscented deodorant - like Mennen speed stick (blue)

hope that helps!