I'm quilting right now a lap quilt that I basted with Elmer's! It's working out great but I went way over board with the amount of glue that I used. It was my first time and I wanted to make sure I didn't miss any spots so I swirled, lined and dotted with the glue. That baby is stuck together and no matter how much I toss it around, it isn't moving anywhere.
I taped my backing to the floor like you would pin basting then I laid out my batting on top, pulled back the batting half way and glued, glued, glued. I smoothed it down and then did the same to the top fabric. I pressed it a bit with an iron and let it dry over night.
Next time I will do the grid and trust in the fact that you don't need to cover every inch. Just put the glue where you would a pin. I have hard blobby spots that my machine doesn't appreciate sewing through but thats my fault and could have been avoided. As long as all the glue washes out ill be happy and probably won't baste any other way. Good luck!