Just enough to carry a wallet and phone and keep my hands free.  I got this so I could carry my camera bag and not worry about a purse, too.  Leather and canvas keeps it from having that fanny pack vibe.  I also wear it to the side like a hip holster.

The only downside is how freely it slides on the included belt.  If you're not coordinated enough taking it off to go to the bathroom, it will slide right off.  Very fun in a public restroom.