If you find you are continually up and down fetching drinks during your stay in Lloret de Mar you may wish to cosider a bar that sells drinks by the litre. These drinks are typically sold in plastic beakers which hold a full litre. You are then free to take the drinks out or drink them inside. You can buy litres of beer, sangria, vodka redbull, rum coke, tequila sunrise- and loads more- it generally works out much much cheaper than the traditional measures.
I know of three bars that sell Litre drinks- the LT bar in the Avenida Just Marles, the Torito Pinchito next to the Londoner and the Bar Barretina in the Calle Arenys.