Here's my opinion, The problem with most people is they have a hard time separating their WANTS from their NEEDS. So the little debt you mentioned earlier grows a little each time that WANT(toys,vacations, etc.) is fulfilled then when the NEED(tires, auto, braces, etc.) has to be fulfilled the pot is maxed out and now the ship starts to take on water and it's the beginning of the end.

My issue with the 0% financing is I HATE MONTHLY PAYMENTS did I say I HATE MONTHLY PAYMENTS!!!.