Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

Clear example of credit card balance 55 days interest-free “trick”?
Well, I answered a very similar question "Credit card payment date" where I showed that for a normal cycle, the average charge isn't due for 40 days. The range is 35-55, so if you want to feel good about the float just charge everything the day after the cycle closes, and nothing else the rest of the month. Why is this so interesting? It's no trick, and no secret.  By the way, this isn't likely to be of any use when you're buying gas, groceries, or normal purchases. But, I suppose if you have a large purchase, say a big TV, $3000, this will buy you extra time to pay. It would be remiss of me to not clearly state that anyone who needs to take advantage of this "trick" is the same person who probably shouldn't use credit cards at all. Those who use cards are best served by charging what they can afford to pay at that moment and not base today's charges on what paychecks will come in by the due date of the credit card bill.