11.When you go into Walmart for the first time and it's so huge and everything is so cheap and you get overwhelmed.
12.When you're trying to work out whether you need to tip someone, and if so, how much to tip them.
13.When you spend five minutes counting out the exact change, figuring out how much a dime is worth, only to realise that tax isn't included and you need something random like 7.5% more money than you counted.