Some basic advice would be:
1) Learn to call. Start practicing now. Electronic calls are okay I guess, but mostly they're crap. It's not hard, and you'll be more successful if you do your own calling.
2) Soaps and detergents are a gimmick. They might help across a cut or swamp, but you leave a scent that lasts hours or days everywhere you walk, breathe, piss, touch a tree branch, etc. The moose knows you're there no matter what kind of deodorant you use - normally bulls won't care, and might even be curious enough to come check you out. If you're cow hunting smell is a bigger factor - hunt into the prevailing wind as much as possible, and don't move around where you don't have to.
3) Be patient and don't move around too much. If you hunt where the moose are, sooner or later one will either make a mistake or come out to a call.
4) If you're hunting in a party, ideally only one person will be calling - the rest of the party is waiting for a shot.
5) Try to hunt when there's little or no moonlight at night. Anytime they can go nocturnal, they will.
Lastly, don't be afraid to make a bit of noise. There's good noise and bad noise. Breaking a stick, raking the bush, letting out a few grunts, etc. at a the right time can be REALLY effective. Practice these things over the summer.
HAVE FUN AND GOOD LUCK!!
