Shopping Afield

I just can't get the hang of this shopping, especially Christmas shopping. I can go into the woods and figure out how the deer are moving, their bedding ground, what trails they are using and how big the bucks in the area are. Then I can figure the exact location for a stand and how to get him. I am lost when it comes to going in a store to buy anything.
I am one of those men that goes in and buys exactly what he needs then gets the hell out. Figuring Christmas presents seems beyond me. Did you know that sometimes you have to go to more than one store?
I am off to shop this afternoon, wish me luck.