<prompt> Human: I recently sold my house and walked away with a large chunk of money 80K thanks to paying down the mortgage and increasing value on the house. Some of that will be used to pay off car debts, new house down payment, etc. However for my new house I am planning to spend quite a bit to replace all the cheap furniture and crap Ive accumulated off craigslist and to do some upgradesrenovations to the house. My guess is that Ill spend around 15K on the house investments in about 3 months. Ive got the cash to pay for it but I realized this might be a good chance to take advantage of a credit card by earning a ton of rewards, paying it all off before interest hits, and then basically cutting the card up and not using it again. So are there considerations I should be looking for when evaluating credit cards for the best rewards system for my situation? How is doing this going to impact my borderline excellent credit score? Are there particular cards that folks would reccommend or suggest I avoid? Im probably most interested in accumulating some travel voucher type miles but Ive never used a credit card to accumulate those so I dont know how restrictive they are. Id also ideally have the flexibility to get some non-travel rewards. Thanks in advance for any advice.  <response>: Whatever you do, dont even apply for new credit until after you close on the new house. Otherwise that available credit can prevent your mortgage from being approved. 