The best part of having other people read your stuff is that they notice fun things you may not have consciously realized - like that both the people who really love Regulus end up with an article of clothing that doesn't begin to fill up his space. It's stupid in retrospect, but I only ever really thought about Severus's sweater, not so much Kreacher's robe. I'm really glad it's there, even though I didn't realize it when I was writing!