Good tip.
I'm gonna throw another one out there. If you're changing brake hoses, use a long stick (crutches are perfect) wedged against the front seat to depress the brake pedal a few inches. This will push the master cylinder in and isolate the brake system from the reservoir. Brake fluid will still drip from the open lines, but very very slowly. I had my front calipers off for three and a half weeks and topped off the master cylinder twice.
