How do you guys with the kit keep your side skirts attached to the car?

I have 1 screw in each wheel well, as well as 2 sided m3 tape and the body kit pops out, and doesn't sit flush with the car

Any other ideas?
I want to be able to take the kit on and off during summer and winter...

 

pop rivets and self tapping screws work, but require permanent holes.