Here is my commuter rail kit list as it has evolved:

  • one liter Nalgene, full of fresh water
  • protein bars **
  • spare CR123A battery in a plastic wrapper, suitable for my primary EDC flashlight (which is a 4Sevens Quark 123 S2)
  • 4Sevens Prism kit to turn the Quark into a headlamp
  • iTP A3 EOS Upgrade 1xAAA flashlight on a neck lanyard
  • Mini-Bic
  • A couple of large paperclips
  • eight Potable Aqua chlorine dioxide tablets
  • Fox 40 Micro whistle in blaze orange
  • A small amount of duct tape
  • Sawyer sunblock with bug repellant spray
  • Dust mask
  • bandanna
  • mechanics gloves
  • Heatsheets 2 person emergency blanket
  • emergency poncho
  • large contractor bag
  • Countycommm "ETFR" small radio with earbuds
  • Leatherman Wave (pre-2004) **
  • screwdriver with bits in hollow handle **
  • Preon 2 S3 Ti **
  • cable ties **
  • small FAK including Patrol Officer's Pocket Trauma Kit
  • sync/charge cables and AC power cube for my iPhone **
  • 10 Ah lithium polymer battery with cables to charge my iPhone, iPad, and other devices **
  • earplugs **
  • facial tissue **


** denotes items I carry for work that can be pressed into service for emergencies

The only things on my list that I didn't see on yours that I'm sure I want to recommend to you would be the Heatsheets, a pair of gloves, and a mini-Bic. For myself, I prefer a multi with good pliers over an SAK, and I also believe that a silcock key is unneeded weight (especially with a multi) but those are my preferences.