I can highly recommend the Saris Bones bike racks. Sucks if you have to leave your bikes because they don't exactly lock but when I was driving a car that rack saved my life. Now they come in all sorts of awesome colors. I got a lot of compliments on it, even from folks who weren't perverts saying "Nice rack."
In the mean time dish soap does cut grease as I have learned after several camping trips.
"True, but if you throw your panties into the middle of the peloton, someone's likely to get hurt."