Pots and pans; either the ones you have, the ones you registered for or ones you have seen and liked. Tell me which ones you wouldn't get, and why.
FI and I are starting to think about our registry, and this is one of those items we really have no freakin' clue about. The pots and pans we are using now are the ones left over from his college apartment years.
Non-stick, stainless steel, Caphalon, Cuisinart, Pampered Chef, all of it makes my head spin.