I've been making a bunch of pillow cases for my grandkids and also for a Craft Show. I have never figured out how to finish off the end of a serged seam. I gotta do something or it will unraffle, but what? I have been going in with needle and thread and sew a few stitches to seal it. Not to mention I just broke my sewing machine needle trying to do it by sewing machine.
Is there a better way?
Gilla

Make the threads long and tie a knot, or take a needle and run the end of the threads back up the seam, or you can cut off the end and use some "NO FRAY" or 'FRAY CHECK" on it.
For pillow cases, I usually just tie a knot as close to the end of the seam as I can get, using a stiletto, or a pin and push it down.

there is also the hidden seams method of sewing the pillowcases together. will get the link for you. it is a video tut I found. I can't seem to find it. I must not have saved the site. Stupid me. Now I wont remember how to do it. good luck. though

I do French seams on my pillow cases. No raw edges show. Or user Fray Check on the tread ends.

Fray check...it works great.

There is a little hook tool/loop turner that I use to weave the thread back into the serger seam. You can buy one at a JoAnns store.

sahm4605 . It is called a french seam. Sew seam on the right side of the fabric first then sew on the wrong side. This encloses the cut edge of the seam

This is a great way to make pillowcases with the sausage or tube method.
http://www.youtube.com/watch?v=NLnrC9yo8tY

that is what I thought it was called. but couldn't be sure.

This is what I do too.