Although I'm aware of the poor probability of making profit on one of these, bar some luck, I do enjoy putting a few quid in, normally betting on red, black, odds, evens. Anyway I notice a lot of guys seem to spread small money over the board to maximise chances of success. But how is this normally done? Do guys just spend about £6 spreading 20ps [which I believe would win £7] and hoping one of the numbers comes in?