<prompt> Human: Hi all,Simple question. My wife and I use Amazon frequently for 100 purchases and always just pay them off in full. I was wondering if it would be worth it to take out a credit card to put these purchases on and pay it off quickly to build credit. Thoughts?  <response>: Yes, and look for a decent no-annual fee rewards card. If you have Amazon Prime, get the Chase Amazon card - you will get 537; back on all Amazon purchases. 