New postings of member's efforts are always welcome. We get to critique and maybe learn something new, or remember something we forgot. You may want to store your ziplock flat and unfolded. I've found that over time the toughest of plastics, aluminum foils etc. often develop splits on the folds. It's fun to upgrade. Just remember that a .99 cent raincoat is the equal of a Burberry trenchcoat next to the poor fellow standing in his cotten tshirt and jeans. Upgrade, but keep the .99 cent stuff to help others. Best to take your prybar and, well pry something. See if it works on doors you might have to force in emergencies.