Heres is one that will help you when bloodtrailing at night. I posted it here a few years ago and have seen several others post how well it works for them since then. It is an old trick that we used for catfishing and now use it when trailing at night while using lanterns. Take a piece of aluminum foil and wrap it around the back half of the lantern globe. When you are bloodtrailing it will keep the light out of your eyes and really illuminate the blood in front of you. It also seems to cut down on the lantern heat on you on those warm early season nights. It really works well.