I've had a huge grudge for years from those bullshit credit cards you get at some stores like Best Buy or Macy's. These are literally the worst things ever.
Not if you use them responsibly. I have a Best Buy, Lowes and Home Depot credit card. I read the fine print before applying for them. I knew what kind of interest they were charging. The only reason I got them is that all of these stores occassionally have 0% interest for 6/12 months deals.
I got my HDTV from Best Buy with a 3 year no interest deal. It will be paid off by the end of the year .. eight months early.
I've bought appliances from Lowes & Home Depot .. same thing ... they get paid off before they are due.