Good idea to sew the batting together I just started doing that. I found a couple blogs and this entry on the moda bake shop that show people taking the bigger pieces and with rough trimming and measuring them they are folded and put into bins with the measurement on them so you can quickly grab what you need to either sew them together or use for small projects. So I think I will try this out and see. So far I have only been buying by the package but really think going with a roll would be a better way to go.
http://www.modabakeshop.com/2016/05/...ng-scraps.html