whew! this topic could go on forever...

I keep a blue recycle bin in my car trunk with all the usual vehicle necessities (that you never need 'cause you HAVE them with you - You always end up loaning your jerry can or booster cables to someone ELSE!! Murphy's Law).

This last trip to Europe was the first and only time I haven't thoroughly planned to the minutest detail everything I needed to pack. We had been overly busy at work and plans to get away early or at least half-decently somewhere near 5 p.m. any day in the couple weeks prior, just was impossible.
Ends up I dashed home with 45 minutes to spare until I was supposed to be on the way. I was throwing things out of the closest into a bag in the last half hour with folks standing in my living-room waiting to take me to the airport.
Surprisingly... I found once I arrived in Munich that I had not forgotten anything, and amazingly enough my clothes were the least wrinkled of many well planned packings.

:-)