I kept losing my quick desk doodles under piles of papers at work. Tried taping them up but they'd fall off after a day. Then I started sticking them to my monitor bezel using 3M blue tack. 12 sketches still up after 2 weeks now.
Ha, funny you say that. A buddy of mine used blue tack to hold up a small shelf in his dorm room and it lasted three years until he moved out. Guess he did the job wrong too then.