This template is inspired by Kepano's post about how to spend money on things in a smarter way; by thinking about cost per use. https://x.com/kepano/status/1708499101778923647
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This spreadsheet helps you calculate how much you paid for something, how much you can sell it for today, how many times you used the item since the day you bought it, and ultimately how much you paid for the item every time you used it.
The biggest takeaway here is that the longer you have an item, AKA the more durable it is, and the more you use it, the lower it costs to you. Therefore, you should try to buy the highest quality and longest lasting items as early on in your life as possible.