Next time you need just a little amount of setting-type drywall compound, try this: Place the amount of dry compound you think you will need in a 1-gal. heavy-duty Ziploc bag. Now add half the amount of water you think is necessary, and knead the mixture. Add small amounts of water until you get the desired consistency. When you’re done, turn the bag inside out, brush off the flakes, and save it for another batch.
Charles Jefferson, Salem, OR