Mix them up is how I do it.
Originally Posted by LifeButBetter
I file things by how I think I will look for them later. That is sometimes a bit quirky. If, later, when I am looking for a file and it's not where I first look for it, when I do eventually find it I relabel it to match my first place even if it seems weird.
I see no problems with files for the car and for insurance. In fact that is exactly how I have mine organized right now. It's partly because our insurance includes the house and car and farm all on one policy. I'd never think to look for the house insurance info under the car file but I would think to look for the car insurance under insurance first. I did it that way even when we had separate policies for the house and cars. I had one big folder with all the insurance policies in it. The time to sort through the 3-4 policies to get the one I needed was small compared to the time trying to remember if I filed it under House Insurance or Car Insurance or Farm Insurance. The key was it was all insurance.
Some other Examples:
I have a bunch of files relating to our sheep. A lot are filed like this:
Sheep AI Project 2008
Sheep Breeding EPDs
Sheep Disease OPP
Sheep Scrapie regulations
But some are filed as:
Flock Records 2009
Flock Records 2008
BWMS Newsletters UK
BWMS Flock Book UK
BWMS Flock Book US
It's all how I will look for the stuff later.
Also keep in mind that while you want the freedom to feel comfortable filing a single sheet of paper in its own separate file folder likewise you need to feel free to combine documents if that makes more sense to you. In my examples above all the years of the UK flock book are in one huge file. Sure, if I need one specific year it can take an extra 30 seconds to find it but usually I actually need several years at once so it makes more sense to have them all in one file.
Oogie McGuire - Mac, iPhone & Omnifocus
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Paonia, CO USA