Besides the phone which I used to take the picture below with, currently my bag contains:
A red bike light attached to the bag
Work computer, work note book, calendar for 2015 and my private notebook.
Pen case mostly containing hair elastics and computer adaptors.
Wallet in goat skin (instead of pet)
Phone charger for some odd reason, it usually never comes with me.
Tooth brush and mini tooth paste (refilled a thousand times)
A tea bag