Friend crb
Everyone knows that if the clips are made of the correct weight wire, and the amount of tension holding the lid back is "tuned" correctly; The clip can then be permanently removed, and the lid will "wait for me" to put all of the cases in the box.
Of course the result will be water in the case (especially if done outdoors in the rain).
determining the correct wire weight is easy...but if everyone will put their minds to it they can figure it out on their own.
In all seriousness, its a good idea - how come I didn't think of that? Off to the shop to make clips.
Scott