Even if there are only two people in your family, that's no reason not to buy a whole salmon. Especially if you hit a good deal. Once you've cooked the salmon once in the oven, you'll have food for at least two more days (of course, if you're a huge salmon lover like me, you can get through 1.5 kg of salmon in one evening). Personally, I really like this recipe - everything is cooked in one pan, so you don't have to worry about a separate side dish.
I would like to remind everyone to make sure that when you choose your fish, the scales are nice and snug, the skin is not flaky, and that the eyes are as clear as possible. When the fish is returned, wash and rinse the inside well and shave off the scales.