When you have to stop carving or tooling on a leather project you are working on, put your project in a zip lock or other seal-able plastic bag and put it in your refrigerator.
This lessens the danger of the leather mildewing as well as keeping the leather moist so it won't completely dry out. Leather drying out and then being re-wet causes the leather to be tougher to carve.
By Standing Bear's Trading Post from Reseda, CA.
