Fortunately we've reached the point where we can have the adult discussion and buy our own "main" presents or make it clear what we want. Then they tend to get handed over for wrapping and safe keeping. We're both so "technical" in what sorts of things we like, that even with some idea of the right sorts of things to consider, we'd each inevitably make sub-optimal choices. Then we pick up a few small "randoms" for the surprise aspect.
