I commute with my bike to work a lot and there isn't a lot of shade where I park it and wanted to know of any good portable bike covers people may know of to use 8 hours per day or so? I park my bike inside my garage at home but at work it is just a parking lot. Any links to the websites and reviews if you have used them personally would be great! Looking for ones that fold up nice and tight to fit inside my back pack I use everyday. Thanks!