With a bow, and what I consider a good hit, I always wait quietly for 30 minutes before I start down...After looking at the arrow and seeing what is on it then I determine if I should follow or back off...

You must have a good light, and some tracking paper...For years I used a Coleman lantern...A few years back, I noticed that the LED from my headlight was making the blood shine so I started looking for a good LED hand held light that was brighter than my headlight...The one that I found that works best for me is sold at Lowes Hardware, it's made by Coast and sells for about $46 bucks...It has a focusing beam and uses 3-AAA batteries, instead of some others that use higher priced batteries...I used this light last year to track 20 deer or so and it works great...I had used a 3-D Maglight with the regular light bulb and also tried the 2-D MagLight LED, which was too bright...I've also used a couple of "blood" tracking lights that buddies had bought and they just aren't bright enough for my use...

I always carry a head light, the Coast, a AA Maglight and a LED flasher that I picked up at Gander Mountain...I start at the point of impact and slowly head to where I last saw the deer, dropping paper as I find blood...Once I find the deer, I hang the LED on a limb and if it is a long track, I'll hang the AA Maglight with the focusing beam unscrewed on the blood trail as well (I put a paper clip on the MagLight to hook over a limb)...This way, if I'm dragging, I can head to the MagLight, or use it to find my way back on the 4-wheeler...

The big thing is only take good shots, go slow and know that since you held out for a good shot that you absolutely know that the deer is down...
Nothing worse than helping a fellow that isn't sure of the shot, where it hit, where the deer was standing or where it ran after the shot...Just take your time and don't get off the blood trail...If you stop finding blood, go back to the last piece of paper and slowly look to see it the deer change direction...