I have a problem with glue. If I have a large container of glue I don't use much, it sets in the container after I open it. This happens especially with superglue (cyanoacrylate glues). I usually buy a set of those very small tubes of superglue.
A friend at the repair cafe said that he stores glue in the fridge which lengthens its life considerably. Even the freezer. Since the fridge is a drying environment, this would be even better for cyanoacrylate glues which are set by water. Apparently it works with urethane glues too.