I've been bowhunting for 4 years and have spent alot of money on worthless crap. 5 things I can say I needed was:
1-bug spray/thermacell
2-few calls (rattlebag,grunt call,bleat can)
3-scent killer
4-patience
5-figure out how to keep all movements limited to NONE.

I'd be happy if I knew that before I bought all the gadgets and gizmos. Or at least have more money.