The first thing you should do is find out where your money goes on a weekly or monthly basis. To do this, you are going to need two pieces of paper.
On the first piece of paper write down everything you spend money on. Start with bill such as rent, mortgage, insurance, car payments, utilities, and things of this nature. Next, write down what you buy for the household, food, toiletries, laundry, cable, internet cell phones and so on. Now write down the extras you spend your money on, lunch at work, movies, going out to eat and so forth. Once the list is complete fill in the amount of money you spend on each item on the list. If the bill is per month divide the cost by 4 and write that amount down. Add it all up.
The second piece of paper should be folded in half. On one half, you should write down the amount of money that is brought into your home on a weekly basis. Such as paychecks, child support or any other form of income. Add it all up. Now take the amount you make spend and subtract it from the amount you bring in. This can go one of two ways, either you have a positive number left or a negative number.
If you still have money left over, this means you are meeting all of your monthly bills. However, the amount you have left over could be more, if you cut down on some of the extras you spend your money on. If you have a negative number left you are spending more than you bring in. This is an indication that you need to drastically change your spending habits.
The money that you are going to put into the bank every week should be considered a bill that must be paid. This way you always put the money in the bank. Even if you can only save a mere $10 a week, you will still be saving more than you are now. However, whatever amount you decide to save on a regular basis be sure you use that amount as a minimum. If you notice one week you can set aside an additional $15, you should do so. In some financial books it says that one of the advantages of working for yourself rather than an employer is that you are able to pay yourself first. Then everyone else gets what's left.
If you are in a position where you are meeting all your monthly bills and still have money left over, put into your bank account at the beginning of the week or month as much money as you think is necessary to keep you spending wisely. In this way you automatically have less to spend on yourself for the rest of the week or month and your bank account will build up faster.