well if you don't like backpacks, or trunks, or panniers, i guess towing a trailer is out. so basically, you just want to ride the bike itself. my suggestion is to ship your clothes via the post office ahead of time to work, and carry a few tools in your pockets.
that's about all you've got left man.
you're basically asking how can i turn on my computer if i don't want to use electricity?