I do all mine by hand, too cheap for a splitter. Wedge and sledge for what I can't do with my splitting axe (not maul, looking at some though). You know what they say, firewood warms you twice, when you split, and when you burn.
One might argue you get three heats from firewood, cutting, splitting and piling.
There's no other workout like it, go outside, turn your brain off and split until your back says you're done.
I too love this time of year.