I think I fucked up by going commando and mowing the lawn.
Do you feel like you make mistakes like this often?
I think so, what about you?
While it is your personal choice if you want to wear underwear while at home, you should always wear underwear while you are out in public both to protect yourself and as a courtesy to others. If you go commando you risk exposing yourself and other people will not want to see that. Additionally, not wearing underwear can cause health issues such as skin irritation and therefore you should wear underwear as much as you can.
Okay, I will be honest. I didn't go commando since it's too hot.
While in public you should always try to wear underwear. If you do not wear underwear you could leave yourself exposed and have little children asking their parents about things they should not yet even be worried about.