Paste instead of expensive puzzle glue
Since I love to puzzle, but the puzzle glue is too expensive for me, a friend gave me the tip to try it with paste.
So I bought today Kleister, touched and first the upper side pasted (Newsprint as a base).
After drying, I carefully turned the puzzle around and pasted the other side in and stuck the newspaper on it, so it was pretty stable.
I have to say, that works very well.