This is kind of a sidebar rant, but I registered for one small package of newborn diapers, and instead I received 4 packs of other diapers in other brands. My SIL told me she laughed when she saw how little I registered for in the diaper arena, and then I had to explain to her that I've already bought cloth diapers and only need some disposables to get me through until the baby is big enough (which should be quickly).
That's only one example. I got lots of things I didn't register for because I already bought things or received loaners or gifts from others. Why does everyone think they know better than me what should be on my registry?