Here's a picture of the quick bags I made for my kids. I wrapped all their little gifts and then put them in these bags.
The bags were really really simple. I took a half a yard of Christmas print material and folded it in half, selvedge to selvedge. I stitched up the sides, adding a tie about 5" down from the top on one side. Then I just finished off the top by folding over a half inch and stitching a quarter inch seam. Super, super easy.