Clogged glue bottles - a real frustration when you have a group of 25 kids waiting for the glue!  Remove tops and put into a bowl with 2 tablespoons of vegetable oil.  Work oil into lids, rinse and put back on bottles of glue.  The oil keeps the glue from clogging the lids.  Haven&#x27;t tried it yet but have 50 bottles of glue I will attack first thing after the holiday break.