Shoutout to the $12 neck pillow that got me through a red eye to Reykjavik last month
I almost didn't buy it because it looked like cheap foam, but I slept 5 straight hours on a $280 flight and woke up without the usual neck crick. My buddy paid $60 for one of those fancy memory foam ones and he was still miserable. What's your go-to cheap item that actually earns its spot in your carry on?