Rust-Oleum Chalkboard Paint.  Add a chalkboard to your kegerator or in your beer room\brewing area.  Let people know what’s on tap, what’s on deck. what’s aging, what’s fermenting etc.  You could also use a chalkboard area to plan and track your brew day.

Rust-Oleum 1913830 Chalkboard Spray, Black, 11-Ounce

Also: Search – Liquid Chalk · Tips & Gear for Your Kegerator