Two EDC folders. One larger (3-3.25") blade for work, one smaller (2-2.5") when not at work. Potentially a 3rd, more socially acceptable small folder (under 2.5"), like a traditional slipjoint or, more likely, a SAK.
Three kitchen knives. Large chef's knife (8"), santoku (5.5"), and paring (4"). Might be able to get by without the chef's knife, but it would make some tasks more difficult. Paring knife can also serve as a really nice steak knife.
Been considering a fixed blade for outdoor recreation. So far, though, my larger EDC folders have served that role fine.