strange catalytic reaction with 30 minute epoxy
Instead of tearing up your old magazines (which means storing them until needed) I use Post-It notes. If you're not mixing great honking amounts, they work great. Stick the adhesive side down on your mixing hand side and it never goes anywhere, no matter how vigorously you mix. You have just enough space to mix the right amount of 5-Minute without wasting any, and they are easily disposed of. If you want to get really fancy, buy one of those dispensers. It works just like a Kleenex box and it's re-fillable.
Ed