Every fly-tying recipe features specific materials . . . but none call for junk that’s on your hands. Yet, if you start tying with dirty, greasy fingers, you’re bound to transfer some of that gunk to the fly itself, and that’s a bad thing. If you want your flies to look as good as Tim’s, take the time to wash your hands very well, dry them with a clean cloth, and then spend a few moments removing any rough spots that might lead to frustration. As a bonus, you’ll be less likely to contract the flu, as well!