A returned item carries the evidence that wanting and using are different kinds of judgment.

Desire and use answer different questions, and only one of them is available in a shop. Standing there, you are predicting a version of yourself who has the time, the occasion, the discipline, the right kind of week; the return happens when the actual self shows up and declines to cooperate. That is not a character failure, it is a forecasting error, and forecasting yourself is genuinely difficult. The receipt is just the record of the correction.

Before the next purchase, ask what specifically you will use it for and when. If the answer is a version of you rather than a date, wait a week.