I don't have to hide what I buy. There was a time when I was spending a ridiculous amount of money on quilt related items. I had a fleeting moment where I thought about hiding things but then I realized that the bank statements would tell the tale anyway. The problem wouldn't be my husband asking where the money went , but me feeling guilty ( deservedly so!) for buying too much crap.
I made the conscientious effort to stop buying everything on a whim. Now, I will spend some money here and there but I never feel embarrassed and want to hide it .The decisions are good ones, rooted in what I really might need and not the simple thrill in buying.