To see the best (and worst) times to visit, please read our reviews of our recommended places to stay
Since the medina is largely car-free, most people walk. If you need help with bags, there are lads with trolleys on hand at key entry points (most hotels have their own porters for when you arrive/depart).
Outside the city walls, you can take a taxi - the best option for going to the Palmeraie. Petits taxis remain within the city limits, while grands taxis are for longer journeys.
Alternatively, caleche rides - canopied horse-drawn carriages - can take up to 4 people on a memorable tour of the city. These can be hired just off Djemaa el Fna. You'll need to bargain and the poor treatment of some horses might put you off.