Absolutely, I use checklists for kits - especially when I travel.

Not only does it work great when packing, but it also helps when I'm on a trip and I realize I needed item X, and didn't have it.

I have three main lists -
The commuter pack/computer bag
The Carry-On Kit for flying domestically
The Europe Kit for travel to the less enlightened regions (no lock-blades, for example)

I print them on sheets of regular paper, and run down the list now and then.

This is saved me countless dollars by avoiding double buying and also helps if I'm not hope to pack for a trip - my wife can handle some of the packing.

For the fire company side of my work, I have a "jump bag"/"go bag" of sorts and the checklist is written on first aid tape which is stuck to the compartments and sections of bag itself, so I know what should be in each compartment and so do other people who might grab my bag.

I also have a habit of writing down anything I forgot or had to buy, or wished I had more than three times. I figure once is an anomaly, twice is is worrysome and three times means I should have never been without it.

Most recently, that was the addition of some 341, 357, 2032 and 2016 button cells to my go bag. There's just a LOT of stuff out there that uses these cells (garage door remotes, keychain lights, laser pointers, tiny radios) and while I tend toward the AA or no way school, it's very, very useful to be able to help someone else out with batteries for their gizmo.