Floor mat holder/anchor?

[roofrack]

06 Box Base. My floor mats no longer "stay" in place. Well, they will for a bit but with spirited driving (lots of foot movement) the anchors "pop" out. The mats are in great shape and would like to find a way to anchor them better. I can put the anchors in the carpet holes but they come out again. Does anyone have ideas on an easy way to add something to the plastic anchors to help them stay down without making it a permanent anchor?... Any thoughts would be appreciated. Thanks!