Welcome from Rhode Island, The Ocean State!
I use clips on my dining room table to hold my backing in place - kind of like picnic table clips that hold tablecloths on the table on a windy day. When I put the batting on I move the clips to that - same thing after I put the Quilt top on. Then using basting pins - they are safety pins with a bend in them.
Good luck! Post a picture when it's done!