Spice/herb organizing. This baffles some of my friends. I have a 4 row spice rack that gets higher going back. It spans a double door cupboard. It's alphabetical. Then there's a shelf at the top with large jars-they don't fit on the rack. They're random. Then there's a few that don't fit anywhere else and used lots. There are some spices rarely used, I've thought to trash, but then think if it's trashed, then I'd want it. If I buy a new spice and need a spot, then something get's trashed. India, Persia & Armenia spices are so nice, just started using some of them. Oh, forgot the bagged chilis, they're in the pantry.
Then there's baking: flavorings-liquid. There isn't a spice I use exclusively for baking. And since I can't have sugar, I do very little baking.