Found this and decided to share:

Found this on another site, makes good sense, just wish I'd have thought about this along time ago, would have saved alot of time trying to find the exact spot where the deer was standing when hit since everything looks different when you come down out of your treestand.
Here's a trick I learned. I carry an arrow with bright orange or green fletching.

When I shoot a deer that's not on an obvious trail.(especially in the evening). I will pull it out and shoot it right were I shot the deer. Its amazing as the shadows grow or when you climb down how different things look. It saves alot of timestanding there trying to figure out if you were 10yds back or front of where you thought the deer was standing.