Airport security can be complicated. I don’t expect infrequent travelers to know all the tricks of how to pack your bag to efficiently move through security or navigate self check-in without help. But there are basics everyone should know.
1) Easily removable shoes – you may argue this isn’t intuitive, but remember that security has been forcing us to do this for years now. I hate waiting for people who have to untie their shoes.
2) Listening to the rules – when they say they’re boarding Zone 1, they’re boarding Zone 1. Get in line.
3) Gate checking luggage – if your luggage is large or you’re toward the end of boarding, just gate check. It’s better than trying to fit your suitcase into the overhead and then having to back all the way out of the plane to gate check anyway.