Getting island cornrows or braids
Having your hair twisted into tight, intricate patterns might be great for #vacation selfies on Instagram, but there's an unspoken cost associated with these tropical hairdos. Yes, they can be incredibly painful, and that alone should be reason enough for you to avoid them, but they also expose your sensitive scalp to the harsh sun. Have you ever had a scalp sunburn? Because this is how you get a scalp sunburn.
Booking tight connecting flights
Yes, you ran track in college and know the layout of the airport like the back of your hand, so obviously it should be no problem for you to dash from Gate 2 to Gate 58D if everything lines up perfectly. But here’s the thing: when have you ever had ANYTHING line up perfectly for you at the airport? If you've booked a 10-minute connection, you might as well stop off at Cinnabon and drown your shame in frosting, because that connection is not happening.