Free: Contests & Raffles.
I usually pass on the buffleheads and goldeneye, although I am known for shooting a nice drake GE once in a while. We don't pass on scaup though, a limit of drake greaters is really cool, especially when half the ducks you see on the river are scaup, you need those 3 to get your limit when the widgeon aren't working. Never pass on redheads or cans though.
I'll let the lead fly on them buffleheads.