<prompt> Human: So yes, I am 18, and my primary reasoning for getting the store credit card is to buy an XBox One, but I am somewhat knowledgable and know not to over use. I already have about half of the money in cash ready to buy the XBox, but if I spend 500 in the store with the card then I have 6 months to pay it off. Realistically I will be able to pay it off in 1-2 months, far before the 6. With an interest rate of about 26, will I have to pay interest if I pay it off before the 6 months? Not trying to tank my credit score at a young age but I do want to take advantage of a good opportunity and begin to build my score up. Thanks for any and all help!Edit: Thanks for all your help, gonna take your advice and save up in cash. That pesky GameStop is at it again. Edit 2: This was never a question of Im inpatient and want it now like a typical child. The original plan was to save but I was introduced to this during my recent trip to GS. Obviously Im new to all this so I turn to the interweb for advice. Thanks for caring people :D  <response>: Suggestion: Dont get a GameStop credit card. 