I’ve taken advantage of these free bet sites when you join up.
I’ve taken my money out of jaxx.com now, but I wound up taking them for a £100 profit.
I regard any winnings as tokens to achieve the greater goal.
I keep my bets simple, ie win or lose bets, mostly on Basketball and American Football – good because there is only two possible outcomes 99.9% of the time, occasionally footy but that’s more risky.