I have a favorite font manager Gray its called a book.
All out font are printed in the book, it makes it easy for customers to select a style of font for their signs. I keep all the fonts on a CD except for the ones we like and the ones we use alot. If a customer wants a particular font I install it do the job and then delete it. I keep notes with customer records about what fonts we have used for future reference. I had so many fonts on the machine at one time it ran really slowly and showing customers fonts on the machine was a nightmare, at least with the book it is fairly easy and quick to scan through.
When all the fonts were on the machine and we were looking for a font to do a job we rarely got out of the "B"s before we said right that one will do. Now there seems to be a bit more variety.