Cut the top off an old sock, slip over pants leg after folding neatly!
Looks like crap, but it works!

Had one of the fancy Velcro straps get in the front derailleur. First time
I tried it! The LBS refunded my money and repaired the derailleur.
Funny thing, I bought the strap while I was waiting to get a wheel trued.
When he turned the first spoke it twisted the rim tape and tube and the
tire blew out on the stand. They took care of that as well. I still had to
pay for the wheel service.