I guess the true answer to the original question should be.
It depends on what your using it for.
If you only want to stick a couple of cards together for a bit, there are hundrens of products available, including Saliva, for that truly impromptu vanish.
I like Candle adhesive, though it's a wee bit messy. Its a thin beeswax paste, that comes in a small round tin. It Smells of bubblegum.
There again if your anchoring a thread you can go for beeswax, some brands of tack, the wax off of mini babybell cheese, silicone buds, double sided tape... all sorts.








