Free: Contests & Raffles.
When I was younger I used to just go through fly tying books and tie two or three of anything. I also know that I still have a lot of those things in my vest, and they have never been used. Now-a-days I do 90% of my stream/river fishing with 4 flies:1. Elk Hair Caddis2. Adams3. Parachute Adams4. Bead Head Hares Ear Nymph5. Bean Head Pheasant Tail Nymph6. Wooly BuggerFor lakes I usually use the same, except I would add a fair assortment of Chronomids.