Free: Contests & Raffles.
The most effective way to kill mature bucks is from a blind or stand ... if we had better season timing you could hike and rattle and do well.. but for late nov-Dec stands are the best.. no doubt... I have 6 pope and young quality bucks since I started doing it.
As I learned on this forum, the cold mornings will have the does out sunning themselves early to warm up. I went out last year on a day like today, and there they were!