I have a rack on my bike that has a 50lb limit so I use it once in a while to bring a load of laundry to the laundromat but in my apartment I don't have the room to keep bike with the crate mounted 24/7 on it so I want to find a way to mount it and be able to take it off rather easily, but every way i try will tip over once I have a trashbag of clothes in it. Does anybody have any options of how i can make the rack easily removeable but sturdy once on?