I second the wax paper. Cheap, and nothing sticks to it. I also use it extensively in fiberglassing. I also don't use CA. Clean joints just mean being careful will the glue. Carpenters glue sands much easier that CA if you do have a blob that gets through.

Acetone does a poor job of dissolving CA. You'll have better luck with MEK, but use it out side, as its more toxic than Acetone. Becareful it doesn't debond you're glued joints.

Brad