I made 0.01 or more last night playing with free spins. Unfortunately, I didn't withdraw it but instead play it all in other games they offered buy lost it all eventually. I guess I got lucky and was able to make 0.1 that day, or maybe the casino will always giving out 0.1 for free games because they know that you will play that amount in other games and lost.
That is really great that you won a lot from those free spins, it is really a feat for me because I am also using free spins and free satoshis of a gambling site or a casino to gamble on either their dice games or roulette. I am not having that kind of profit from those free satoshis or free spins, my highest win was just .001 from 200 satoshis and I am really happy with it, though I am not contented with it and still continue playing, I can't withdraw that amount because that is the least amount to withdraw, I dont still have a payment for the fee so I continued playing which really ruin that all up.
I think having a .01 is either making a trade or save until the price is really good, trading is really good, though that .01 is really not enohgh to invest.