I too was terrified of binding, but I tried Sharon's way. It really is easier. The glue binding is great. It really isn't going anywhere once it's glued. My miters came out really well and the binding looks really good. Don't be nervous about it. After all, you just done a KING size quilt. That really terrifies me!!
Don't try to use your ironing board for this. Throw a blanket over your table. It'll make it easier.