I've been diligently feeding the birds this winter what with all the snow that makes their foraging so difficult. Even if that means braving snow and ice and temps in the teens to fill the feeders. I love to sit in my sunroom and watch their happy antics as they vie for their spaces at the feeders. It cheers up an otherwise drab day.
I keep several feeders going at the same time: a tube feeder for sunflower, two tubes for thistle, and two larger vertical mesh-sided feeders that hold five and ten pounds respectively. Plus some suet feeders. The only seed I use is black oil sunflower. Anything else is a waste of money IMHO.