Hey everyone, I've been working at UPS for only about a month as a loader in the air belt at our hub. The other loaders have been telling me to learn the air sort to get that dollar raise. The supervisors said I need to memorize the Next Day Air and 2 Day Air packets, and when I pass the test, I get the raise. So my question is, how did all you sorters memorize all those zips? I've read about flash cards, but how exactly did you make your flash cards? Any tips or suggestions would be great! Thanks!