Thing I like: 
My A5 double gear sling/chest harness.  I wear it all the time now, even to work.  I clip pens, my wallet, a coffee mug, lip balm, car keys, leftovers- to it.  It is so handy, much better than those cargo pants with the multiple big pockets that I used to wear.  I am gradually duct taping accessory cord to everything I own so that I can carry it around on my double gear sling.