Raise your hand if youre slightly obsessed with using TSA PreCheck when you travel. ๐โโ๏ธ And, while TSA PreCheck certainly isnt a secret travel hack anymore, its still more popular than ever. We use PreCheck every time we have to travel through the airport , and it often saves us time and headaches!. But, if youre thinking about joining the TSA PreCheck club, you need to be aware of this...