I make my own frames, the same as Mr. Draper. A table saw and a good miter gauge is all you really need. Frames are technically easy to produce and can be done fairly quickly with practice.
I enjoy that the finished print is entirely my own creation and design. You also have many more options (at least with wood frames), when you make your own. Commercial wood frames tend to be very poor quality lumber and construction. When I make my own frames, I am free to choose the perfect wood in terms of color and texture without resorting to dyes and stains.
I'm not sure I save money over commercial framing, but I do get exactly what I want.
Phillip Dobson
A question for Steven: What is this "frame filler" you use?