I agree with Bearis. If it doesn't matter where the stitches fall, then tie it on the back.
I have always used a "butcher's knot" or what my Grandmother always called an A&P knot (for the old grocery chain back East). It's actually just a square knot, but when you wrap the thread through, instead of doing it once and pulling, wrap it twice. Pull it tight, and that knot won't come loose! Then you could trim the threads fairly close.
Originally Posted by bearisgray
Some people have the tie ends on the back so all that shows on the front is a stitch.