I often need to buy something during a project & of course while trying to find that item, the fabric calls out to me. I often will buy a small amount with cash I have on me so he won't see it on the card & put it amongst the needs I went for. Then when he goes out to his workshop, I hide it amongst my other fabrics so it looks like it's been there for a while. He does sometimes tell me to buy though, so I feel pretty lucky.