From Jesse Mincey on Boomer:
Some of us collect fonts and that means font management. Fonts can be managed manually, but oddly enough, not easily managed by the Font Book app that Apple gives each Mac user. There are system fonts which are required for the Mac to run properly, and there are fonts which most apps use, and there are fonts you buy and install and those are the ones that need a bit of management.
Jesse solves the font problem with TypeFace. My favorite, too. Excellent app.