Wow thank you so much !
Haha we discussed about the stacking but decided it would make things too easy :p
We have prevented the player to be lock by making the inventory throw away precedent items to get new ones. So I guess that makes two ways to get rid of items ;)
The clicking through the UI is a problem. We know about it but didn't have the time to correct it. It will be on the after Jam patch though :)
Really Happy you had fun with our game, it was a lot of fun to make it too!