I have had a serger for 20 years and keep it handy,it sits behind my regular machine and I switch places when I need it. I use it for sewing the long seams for backings, it cuts off the selvedge and leaves a thin seam that don't need pressing. I use it sometimes on the outer edges of quilts, it cuts through the backing batting and top and leaves a nice flat edge for binding, if I were more dexterous, I could appley the binding at the same time but that takes some fancy coordination. I use mine for rolled edges onlinen, use a colored thread and do the outer edges of bookmarks, and have made quilt tops with it. I found a book on making quilts with the serger. You can sew squares together, one after the other, don't cut them apart, when you have the number you want, unfold the squares, match them up and they are ready to go the other direction. Find a book on using a serger, it can be used in so many different ways for practical and decorative work. With use you will get experience and read the directions. Mine also has the chain stitch which I have used for basting and seams, just like professional sewing. Patience helps and a determination to master the machine.
Carol J.