I am also trying to figure this out. I just started getting into sewing and right now everything is in random piles scattered around the room. I'd like to organize everything by color and have it somewhere that is easily accessible but haven't figured out how to do it yet. I am definitely thinking some sort of shelving though.
This is something that I have seen mentioned a bunch in the FOC section so you are not alone I think I remember reading that this is something that Leah wants to look into, she's just not sure when it will happen.
Sounds like a refresh problem. I'm not actually sure where the button is that you are seeing, but when the problem happens what are you doing? Is it when you first go to a page or are you scrolling down and seeing it? Does refreshing the page fix it? It might also be a caching issue. You might want to try clearing your browser's cache. Tools > Clear Private Data > and check Cache (might not hurt to check all of the boxes but you will probably have to re-login to Craftster). Hope that helps!