<prompt> Human: I just bought a house, a real fixer upper. I currently have two credit card chase freedom and amazon prime. I pay them in full in each month and reap the rewards. I am debating on opening like a lowes or HD card since we will be spending alot 5-8k there over the next year or so. Is this a good idea or will it negatively effect my credit score compared to the rewards I would gain? How many cards is too many cards.  <response>: Doesnt really matter as long as you are responsible and pay them off.Related: Im also in the middle of a lot of house projects. I use my Amex Blue Cash Preferred to buy Lowes and HD gift cards at the grocery store because I get 6 cash back there. Also, if you have any big expenses, consider opening new cards and using those big expenses to hit sign-up bonuses. 