RE: How do you remove polyurethane glue excess?
Make up a couple of test peices with some scrap material, coraplas, balsa, foam or what ever you are working with. Work out the bugs before you start on the actual project piece. The packing tape is great as it has enough sticking power to hold back the expansion of the glue but still allows it ooze out at the ends. Thus making the clean up much easier.