When I started quilting, I had no idea how to do this. My knots would look so ghetto, lol. This may be a no-brainer to a lot of you seasoned sewers out there, but for all of you that'd like a quick lesson, here's a 3-step tutorial. I know I would have appreciated this 6 years ago! (Sorry the picture quality isn't the best - I was taking these photos with my left hand).
You basically just a) and b) With your needle and thread, make a loop. Hold the thread's tail so it doesn't slip out. Then c) put the needle through the loop to create a knot. You can repeat a couple times.
This is great for when you're hand stitching your binding. I also have a short video I made a while back on my Binding & Blind Stitching tutorial (scroll down for the video). There's another technique on how to tie off a blind stitch. Either way works.
That's it for now - just a quick tip!