I find cidre, its cheap and ya can knock it back pretty easy, that or cheap beer (stubby bottles from tesco/lidl are quite good and cheap) and they are about 4% if not more usually but dont taste it, I can drink em like pop lol.
I never have a spirit before goin out cos I usualy end up having that later in form of shots or rum and coke, I perfer somin easy before heading out lol