Good tips, but I have some more.
If the wood is hard to split, cut the pieces shorter. (obviuos I know, but sometimes people are set in their ways and cut it to the length of the stove/fireplace no matter what)
Never use the sledgehammer on the axe, it can send VERY sharp shards of steel flying, penetrating even jeans. Also the axe will break on the sides where the handle is going through the eye, possibly sending a sharp, heavy axehead at someone.
When stacking the billets make sure the bark is facing down or it will stop the moisture from evaporating - more than you would expect - and prolong the drying time.
If there is a knot in your log line up the axe with the knot, then the wood will split around the knot. Trying to chop it perpendicularly will only aggravate you :-)
If you chop shorter pieces of logs, use a chopping block to get the right angle of the axe and keep the cutting edge out of the ground and thus sharp. Of course you should alwas keep your axe sharp, as this makes it easier to chop and reduces the risk of injury as you don't have to use as much force. Let the wight of the axehead do the work for you.
These are some of the things we teach the scouts in our troop and I was taught by my grandfather growing up.

Have a nice time in the "bush"

If you cut your wood in the winter when the sap is down it will have less water in it to start with. Wood splits easier if you turn it upside down from how it grew when you are splitting it too. Wear safety glasses, especially when using steel wedges. There is nothing worse than needing a doctor to remove steel splinters from your eyes. (and your favourite wedge should have that mushrooming of the head ground off for safety's sake.) I like the fact that you have long enough handles and use a stance that tale you out of the natural path of your splitting axe if you miss or swing through the block you are splitting. Stores are selling a lot more axes and mauls with short handles lately. More people are chopping their toes and shins as a result. An axe really can mess up a foot. When I build a stack I prefer to let the ends slope at about the natural angle the firewood would take if the end of the row had fallen over. Remember that if something can fall down on you, then it likely will. So if you make it so it has no place to fall to where you can ever be then you have removed a safety hazard.

I just want the ATV, an electric one of course.

Nice video! I see a lot of your videos, you post great stuff, and I love your user name too, that's cool! I also like your icon. :-)