> You should if there's no additional cost for doing so, because that's a free loan. On the small time scales that interest free financing works, you're probab

> You should if there's no additional cost for doing so, because that's a free loan. On the small time scales that interest free financing works, you're probably better off using a rewards based credit card and getting 2% back on purchases rather than handle the overhead of tracking eventual payoff date on various expensive on household items, or risk missing those and paying very high interest and penalties. A credit card payed off at the end of the month is after all a short term interest free loan. After all, if you kept $1K in your investments by borrowing interest free for 1 year for a TV purchase, how much are you realistically going to make in the best of conditions on that $1K? 4%? So $40. Not worth the overhead of managing it IMO, to say nothing of the credit damage that comes from excessive borrowing.