<prompt> Human: This is my first post to this subtweet so go easy on me :So I had a good idea to get a new card and buy a gaming computer with it I jumped the gun and applied for the card yesterday.My credit is between 680-740 never done a credit check but my mother has helped me in the past to get credit by co-signing cards under my name for her expenses in the past.Right now I rent a single bedroom for 450 a month, I have a phone payment of 100 family plan to help out my mom a little since she retired 150ish for my motorcycle only mode of transportation remaining balance is 4k , and I have a lowes thats 70 a month with a balance of 2,800 which I plan to pay off early. so my monthly bills are rounded up lets say 800.I currently work a job making 12hr, with 80 hours bi weekly guaranteed with overtime most of the time. I make lets say between 1,600 to 2,500 a month. Would it be a good idea to use a credit card to build a new desktop or buy a new laptop? 18 months no interest, It wouldnt exceed more then 1,500, and It would help me boost my credit up quite a bit.I plan on paying off lowes and my bike sooner to save money from paying interest, on top of getting back into gaming to save money towards a savings account.Currently have a crappy office computer from work and really want to play warlords of dreanor xD. TL:DR thinking of buying a new pc with a 18 months no interest credit card to build credit.Edit: thanks for all the responses. Also spoke with a co-worker for advice and Im going to wait and pay off my bills sooner then later. I can be impatient at times and need some self control. Thanks guys!  <response>: Do know that you have to make payments on that credit card every month or else the interest rate will jump to about 20. Some people have posted here thinking that no interest implies no payments due until the promotional period is almost over. 