I have tried virtually every method imaginable to efficiently spread wood glue on my projects. This has become my favorite. I save all of my old credit/gift cards as well as the magnetic keys from hotel rooms and any other source that I can find for this type of card or virtually any source for thin semi-flexible plastic. I have also cut them from things like the lids to butter containers and such. Anyway, I then take the card and cut along one edge using a pair of pinking shears. This leaves a saw tooth like edge on the card. This makes a perfect mini-glue trowel of sorts and helps with applying glue sufficiently and evenly. I can vary the size of the notches for different applications. Also, simply drop the card into a container of water and the glue is easily cleaned off for use again later or, since they don't cost anything, simply throw them away after use. Since they are plastic, the glue will not permanently stick so, even if the glue dries on them, it can still be cleaned off easily. Last, I can also cut these into various shapes and sizes depending on the particular need in order to get the glue right where it is needed.
