And when you go shopping take a photo of the end of the bolt of your purchase fabric and the selvage edge. Do the same of any fabric acquired elsewhere from estate sales for instance. I use my smartphone a lot. Dh was shopping one day and needed a part but forgot the number. Luckily, he took a photo with the serial and other needed numbers. I use it for my grocery lists. With your email you can check any you receive from the fabric stores and load the coupons to use at the checkout counters. It isn't that hard to install any of the apps. I always go for the freebies.