Even the best knives have a flaw: steel is malleable. Each use can cause your knife to become misaligned. Although your knife may still be sharp, it can feel dull and lose its ability to make a good cut. This is where honing steel comes in. Many people confuse this with knife sharpening; however, it simply realigns the blade so that the sharp edge is positioned properly. So what do you do if you need to hone your knife, but don't have a honing steel? Use the top edge of your vehicle's window. Running your knife on the top edge of the window will realign the blade, returning the sharp edge to its proper positon. Check out this video from deermeatfordinner on how to do it.