I have had only one credit card for the past 10 years now, and specifically that card have I had had for 12 years now. I have not kept a balance on it in probably 6 years and pay it off monthly. I put everything I can on the card because its was good for air miles. Well I am looking at other cards with cash back deals and such, my card is not looking very appealing anymore. My question is, since this is my only credit card and the only card I have had in 10 years what would happen to my credit report if I was to close this card and open a new card with better rewards? I have a very good credit score in my opinion and I would not want to risk jeopardizing that as we will be new home shopping in the next 1 to 2 years. Thanks!