You may or may not have heard about the Teachers Pay Teachers premium membership. The basics are that you’ll bump your earnings on sales for about $60 per year. How much in sales does it take to be worth the annual fee? The answer is a little tricky because of how the membership treats products of different price points. I’ve created a spreadsheet that can help you analyze your own sales and see whether or not you should be ponying up for the membership. The spreadsheet is a Google Sheet. You’ll