I saw a "one man" bleeder jar in an old truck service manual and thought, "Hey! Thats a cool idea!" So I made one.
It was a pain in the [censored], and didn't work very well.. not to mention, what do you do when the jar gets full?
The two man method has always worked well for me.. of course it works best when you actually have another person to man one of the two positions.
If I could teach one of the dogs to pump the brake pedal, i'd be set!
I knew a guy years ago who made this spring loaded contraption for just such a purpose. He'd pump the breaks, then wedge this thing between the seat and the brake pedal.
When the bleeder valve was opened, the spring would expand pressing the pedal to the floor.
Of course it involved going back and forth, back and forth.. resetting the "peg leg" every time you opened and closed a bleeder.