This is just the way i do things and i find it not to bad.

1) I bet percentage of bank 2% to its highest point and i re-calculate daily.

2) If my bank falls below 65% of the current highest point i will then re-calculate the percentage to bet at that point and reset to 65% of that amount.

3) Every monday i balance the books and take a weekly wage that equals 1 bet amount for that week regardless of profit.

4) If i have made a profit for that week i take out half, the other half stays to build the bank.

5) Half of the profit i have taken is then placed in another bank account as savings.

6) My weekly wage plus any profit that remains is what we have to live on.

On the weeks when i winn a good amount some times i split the last profit in 4 so there is a bit extra for the weeks to come in case we only have the wage to live on.