Leave clothes at work if you can. Bring in a weeks worth of shirts/pants. They can be folded neatly in a filing cabinet or hung to avoid wrinkling. Then you don't have to worry about the packing time on those and you have less stuff to carry.

If you're in dress clothes that need dry cleaning, see if you can arrange for dry cleaning pickup / dropoff at work. Then you wouldn't even need to be worried about transporting those items back and forth. Plus, no one bats an eye when they see dry cleaned laundry hanging in an office where they might do a double take if they were just hanging there otherwise (not that it really matters)