I have had about 8 accounts that have gone from 30 days delinquent to a charge off. Two of those accounts have been paid in full and have been reported. Since then, my credit score has gone from 520 to 549. I no longer have any open accounts and would like to open one to help in rebuilding my credit. What kind of credit would be best to apply for: department store, a credit card, a secured card, or what? I am continuing to make all efforts in paying all of my older accounts off. Any help or suggestions would be greatly appreciated.