Adults Over 35 Are Revealing The Biggest Things They Regret Not Doing, And We All Need To Hear This Before It’s Too Late They always say your biggest regrets won’t be the things you did, but rather the things you didn’t do. We all have regrets—whether it be not making it to your friend's 25th birthday party, not brushing your teeth before that date, or not bringing an extra roll of toilet paper to the porta-potty... 1. …