Keith,
If you have a parent, spouse, son, or daughter with good credit ask them to add you as an authorized user on a credit card account that they have had open for a long time. The card should also have a low balance compared to the available credit, your score will increase.
When the card arrives give it back to them and tell them to destroy it.
Another way is to dispute EVERY negative item on your bureau. Once the credit reporting agencies contact your creditors to verify the negative item, the creditor has only 30 days to respond, if they do not respond in time the item will come off your credit report.
If this sound like a lot of work, it is. But it's free, and chances are that at least 50% of the creditors will not respond in time.
Those are quick hitters. Installment loans that are paid off have a great effect on your credit score. See if you can get a small short term installment loan and pay it off as agreed.
You can often accomplish this with some banks and credit unions by depositing the amount that you borrow, after the loan is paid back you can withdrawal your deposit.

