Three important items

Just forgo the drinking. :) Entirely. ;)

Number four:
No text activity.

This is something I never have to worry about... Instead of losing my stuff, I tend to find things and put them in my bag. Frebreeze, small glass jars, a large cooking pot, candles, a cat toy, a cordless phone, a gnome.
Just a few things I've found in my bag the next morning.

I thought that was a really shiny black wallet

Until you open the wallet