One of my favorite options is to use thin cedar boards. They’re pretty soft and can last for years. But if you’re like most trappers, you’re looking to utilize items you can get for free—and a large collection of cedar boards isn’t free here in Fairbanks. Sometimes, you can come across old realty signs for free, and they’re fantastic. I cannot condone going around raiding properties, but if you keep your eyes peeled, you’ll find old ones that people will just give you. The signs are similar to cardboard, but made of corrugated plastic. They’re lightweight, easily cut to the right size, take and hold tacks easily without absorbing moisture like cardboard.