We always take the bus to Playa when enroute to Cozumel. Things were a bit different this time (feb 23) in that the bus ticket counter in the terminal was closed or had been moved. We got a porter in the terminal, he hauled our 5 bags for five dollars. Bought our tickets from the bus driver. Just load your bags on a cart when you pick them up, go thru customs, push your cart till someone stops you, the porters will be right there. Tell them "Autobus para Playa del Carmen" or "Autobus a Playa del Carmen". Exit terminal, turn right, walk to end of terminal, bus is right there. Ride to Playa, get off bus, drag bags thru bus terminal, turn right, hire "tricycle guy" for $4.00 to haul your gear to ferry terminal, or haul yourself (2 or 3 blocks). Pick up ferry tickets on the way to the terminal, there are no tickets at the terminal.
Total cost for 2: $5.00(porter) + $16.00(2 bus tickets) + $4.00(tricycle guy)= $25.00.
Not having to hassle with renting car, paying for car, having to negotiate the INSANE traffic in the core of Playa (easily twice as insane as last year), dropping gear off, dropping car off, getting taxi back to ferry area = PRICELESS