This is true, I helped someone repair their credit.
I have been preached at since a young age by my mohter abot how to use credit.
Best thing to do, if you have personal restraint, is to keep all your accounts open. Try to consolidate on your own. Like if you have 3 credit cards try to move them onto one. If they will not let you due to balances, pay them down until you can. Most credit cards only require you pay around 2% of the total balance each month. This makes you have a much more resonable payment to make on time and in the full amount each month. Saving more money for your house payment and needed items. What ou must remember is that you must eat and stay warm an ddry first. Which means take care of the food bills and housing (payments or rents) first in your budget. Other things are just nice to have. You may have to drop your cable and you broad band internet service to free up money to repair other areas. Oftern people get caught in the loop of running cards in the near cresit limit area, so when the interest is compiled, it runs them over and they get charged and over fee, plus have ot pay down to the crefit limit, which makes them late on payment because they didn't have the money, and the cycle repeats.
Though, its easy to say get rid of the credit cards, but these are also the easiest tools to buid credit. Especially for young people. Sometimes no credit history works against you more than a bad credit history. Use the cards, but only rarely, let a small balance carry on it. Pay the interest on those small balances so you get a better rate on your home and car that you will pay on a much higer amount of money for a much longer time.
I could talk about this all day, but then again I have been doing this for many years and I have a 740 credit score, and have Identity Theft protection through Pre-Paid Legal, which helps keep and eye on things for me and sends me reports on credit moitoring. Because as stated above, Apartments, Employeers, even car insurace comapnies run credit reports now. Irresponsibility in finaces doesn't make you a bad person, but studys show it does indicate you will be more likely to be recklous in other areas of life.