<prompt> Human: My details: 29 years old single male 110k income 2 checking accounts with approx 25k in them 1 credit card with an 18000 limit on it 1 auto loan with 18000 left on it 2 years 4 months left No other debt, no other credit linesaccounts Credit score: 730-750 depending on which company is askedWhenever I run any kind of report for any company, or run the free stuff through credit karma I always get an F rating in the of accounts. It always lists that I have 4 total 2 open loan CC and 2 closed, and suggests that I get some ridiculous number like 20. Ill probably be buying a house in 1-2 years so Id like to raise my score as much as possible. Would anyone here suggest applying for several cards 3-4 probably purely in order to raise the total of accounts I have and thus hopefully have a better score? Thanks!  <response>: One more credit card, targeted to complement the rewards offered by the existing one, should be all the you need. And with score at 730 to 750, you dont really need to be concerned about raising your score. It will get better as your accounts age, and I would not go though a lot of trouble opening many accounts. 