I've tried using regular velcro on the back of the mat to the board but the glue ended up being too weak so the velcro piece wouldn't stick on strong enough. BUT, BMW did it best:

they have a plastic velcro fastener thats strong enough to stay there and easy enough to remove. Is there a way we can use this BMW method on our floor mats? Are there any other successful ways to keep a floor mat from sliding? Any good suggestions?!?

