Allotments 4 All

Has anyone a niffty idea for holding the front flap of my mini greenhouse open.  I have put various items on top only for them to come crashing off with this pesky wind.

Hi tomatoada, a couple of bulldog clips onto the back / top seam?

Or gaffer tape?

Great thanks.  Have plenty of bulldog clips and tape .  My husband use to go to auctions and pick up boxes of all sorts of things.  Will use the clips for in the day and tape for permanent time when no risk of frost.   Sorted.