And it involves duct tape (oh, yes!).
I came across this idea somewhere in the wonderful bloggysphere (thanks to CouponSista for pointing me to the post New Use for Duct Tape at View from the Hill). This idea is great and has allowed us to store our lapbooks along with our notebooking pages, so we LOVE it!
Here's how I put ours together:
~ Cut a piece of duct tape that is about 1/2" shorter than the length of the lapbook side.
~ Stick the duct tape to the side of the lapbook, leaving enough room to double the duct tape back and still have a bit of a 'lip' of sorts. This will be the edge that you use the 3-hole punch on.
~ Use a 3-hole punch on the side with the duct tape and put it in your binder - simple, isn't it?