What did you forget to put in your overnight bag when you left home to go on a t

Most of the time my trips are spur of the moment...well they really aren't trips would be me going to visit a family member or friend for a weekend or few weeks but the last time i went on a trip i forgot to pack few things lol...lets see i didn't have my cell phone charger, toothbrush (hehe), and few extra clothes cause i stayed lil longer then i had planned. but my bro was kind enough to go and get what i needed from my home:).