Before I had the room, I laid my blocks on my bed on a flannel sheet. I rolled it up with the blocks on it when I needed to use the bed and rolled it back out when I wanted to work on them again. Now I just have a piece of flannel tack to a wall and they stick on there just fine. I don't have a dedicated space for a design wall either, but this works for me! I'm sure if you did a search at the top of the page, there's some good suggestions as we all don't have sewing studios!!
Hi and welcome from the sunny state of Florida!!