i have a
- mini pump attached to the frame (i'm too cheap for CO2)
- small canister of pepper spray (my hours are very early and through some sketchy areas)

In my saddle bag are the essentials for emergency repairs:
- blackburn multitool (has a chain tool and small serrated blade )
- 2 tubes packed in zip loc bags (i have i store my tubes with some talcum powder as it makes fitting the tube on the rim much easier. Plus, i found that the powder does a good job of taking the stickiness our of grease stains on my hands)
- tire levers
- small hex wrench for removing the wheel.
- a pack of tissues.
- some folded up garbage bags (to be used as raincoat/raincover for bag/pannier incase it rains)
- mental preparation to push my bike in the event of any issues that require major repairs.


In my pannier:
- work clothes
- change of underwear
- odds and ends

i usually leave my laptop at my workplace. (my workplace provide special lockers for us to lock our laptops overnight)


I don't carry patches because i'd rather change new tubes and patch the punctured tube at home.