I love all gadgets IF they work! I get rid of them, if they don't. I love my June Taylor shape cut, all Creative Grid rulers, my clover clip (use them for many things which need pinning), my Elmers School Glue and 505 basting spray. The one thing for which I am really thankful and for some reason didn't seem to catch on is the Gizmo to cut apart chained pieces. This one item has saved me SO much aggravation, and I no longer run the risk of cutting into a sewn piece. Here's a link for those who wonder what I'm talking about. This little gadget is very inexpensive and worth it's weight in gold.
http://quiltsbyjen.ca/what-is-the-cutting-gizmo/