What brand names do you insist on buying?

These things fall into two categories—stuff that you buy because the quality is unquestionably higher than alternatives, and stuff that may or may not be a little bit better than alternatives but that you have strong, minimally-rational feelings about.

I find the second category more fun to talk about, so I offer up the fact that this is a C&H [sugar, US based] house. Once my wife brought home some other sugar, and I complained until the bag was gone.