You can also just put the pages into the heavy duty page protectors. You can also use a crayon on the plastic and erase with a papertowel. One trick if you are going to laminate is to double laminate so the layer is stronger and thicker as it will take abuse as you erase constantly.

For things the kids make we hang them on the back of the front door - my front door is metal and I have strong magnets. We can stand at the gate to the area and see their art work hanging all day long and then it goes home at the end of the day. I also hang parent receipts, notes here too.