Sadly being a UK player we are fairly limited in terms of x bets etc , so I just tend to do min bets of 20p for entertainment while at work or pub :) , only deposit 10 or 20 quid a time so a double up normally ends up in a cashout for a couple extra pints lol. Think biggest wins I've has have only been around 1500x , anything over 200x I consider big for what I spend. Overall only spend what you can afford and do it for enjoyment and don't chase!