I've just discovered a foolproof (but VERY tedious) way of earning money on online roulette. Put a quid on Black, if it comes in you win a quid profit and if it doesn't come in you double your stake each time until it does come in to make yourself a quid profit. Have had a few squeaky bum moments when I've had 64 quid on Black and wouldn't have had enough to go for 128 quid but my profits are increasing very steadily - started off with a 25 quid no deposit bonus for Ladbrokes Casino...and I now have £147.
I need to rollover that £25 30 times but the way this is going it won't be a problem...I might even go for the method of putting 2 quid on Red, 2 quid on Black and 1 quid on Green to see if that still works lol.
Update: I now have £326 lol. My bonus expires after 48 hours, so it'll drop down to £301 at some point...still, can't complain about getting free money
Just wish it wasn't so tedious