What have you recently realised that’s made you feel like a bit of an idiot?
Mine is that I didn’t know you shouldn’t flush tampons down the toilet...... I swear I remember my mother telling me I could when I first started using them, and that’s what I’ve done for 14 years! It was only through a conversation with a friend (about whether you empty your bathroom bin before the cleaner comes.....) and subsequent google that I’ve found out you shouldn’t.....
So, what have you have you learnt recently that you definitely should have known before?