This product has saved us tons of money over the years. Why have I not mentioned it before? Because it's in Mr FS's department.
Miss Em--packing for her trip to Italy--asked "Can you fix my shoes?" YES! Shoe Goo to the rescue!
Mr FS has been using this product since--well, before I met him. It has always been a part of our relationship. He probably repaired some shoes for me back in graduate school.
Do you have any similar frugal lifesavers in your pantry?