There are plenty of cheap accommodation options in Essaouira, but if you're looking for a different experience consider staying with a local. A lot of family's rent out rooms or apartments to travelers to make some extra money. If you're traveling with friends this can be a particularly cheap option as you can all split the costs. Often the apartments come equipped with kitchens so it saves you money of food as well. It's a lot of fun to head out to the market and buy some fresh seafood and spices. Then attempt your own Moroccan homecooked meal. It may not be authentic, but with the fresh ingredients, the meal will still be delicious.