You've actually hit straight onto another storage issue.
Data storage.
I'm sure a builder such as yourself would have to be super organized. I know even a small build like myself has folders and folders of guitar data.
The way I organise this is a folder of builds. Each build has its own folder. In that folder are all the pics related to that build and a file containing the customer info.
Also, after the build is delivered, sometimes you get sent "thanks" pics or videos or sounds samples, I'll put those into the guitars folder as well as it's nice to get things like that. Makes you feel good. So I keep them!
Each guitar folder is titled as the following "### - Joe Bloggs SS7" or "### - John Jennys All Aussie SS6"
So the first three numbers are the build number, then the name of the customer or a brief description of the build.
This way I can search for builds quickly by the number, or I can search for the customers name. If the customer wants the build updates posted on facebook (not all of them do, not everyone is on facebook. A lot of my customers aren't.) then I'll post it as "John Jennys All Aussie timber SS6", the number is not needed, yet in the workshop, the box will have the build number so I'm not writing out a long sentence on every piece. It'll just say "123" and I can reference that easily.
Also I keep a file of the build specs, as much information on the build as well as the contact details of the customer and the payment details, so I can quick reference everything I need to know during the build or in the future long after the build.