I can just imagine the guffaws about posting a topic like this, but after all these years, I find that one of the most basic tasks we do as taxidermists is still made difficult from not having been properly educated. Unless I miss my guess, 99 out of 100 of you simply push a piece of thread through the eye and begin sewing. Surprisingly, there's a much better way. It's common practice with quilt makers and it entails using a doubled thread whether you're sewing double or single threads. In single thread, it allows you to cinch your seams without the needle unthreading. On double threads, it allows you to sew to the very end and then quickly change your thread by unthreading the needle instead of cutting it off. I use Fireline for all my sewing. I use 14 pound (the diameter of 6 pound monofilament) on deer and medium sized game and 30 pound for bison, moose, and Africrap. I keep a spool of 10 pound for the small critters. I like double threads and with deer, the 14 pound doubled is still a very VERY fine thread. I pull twice the length of my arm's length off the spool, double it, and tie a double overhand knot securing the ends. Then I pull the double thread through my fingers until it pinches at the opposite end. I stick that small loop through the eye of the needle far enough to slip over the needle tip and then pull it back to secure it. I will sew until I get to about4 inches of the end. At that point, I take another needle and lift the loop knot at the needle eye. Once it slips, I pull enough double thread through so that I can slip it back over the needle tip, and slip the needle off the line. Now I rethread my needle as before. I slip the pount through the first thread loop and then slip the needle tip through its tag ends. That forms another loop knot on the original thread and that knot easily slips through any sewing holes. I can make a continual seam forever without cutting or tying off. With the single thread, I thread it the same way. Obviously the short end only protrudes the needle about 4-6 inches while the tag end goes arm length. The loop cinches down on the eye of the needle and prevents the thread from slipping through the eye. This is the thread before it's pulled into the eye of the needle This is how it looks after the threads are cinched.