Jates, your blocks look wonderful, lovely jewel tones! So your sisters think you are stark raving mad to make a Jane quilt??? Well, you are in the right place!!!
As to storing the blocks...I pin the name and placemment of the block to the back. Then I place each group of 6 weeks in a large ziploc bag. I will probably follow Jane's layout for the most part, but I have no reservation about moving blocks if they will look better in another place, due to fabric color.