If you are anything like me, you have spent a lot of time over the past few weeks opening letters, finding receipts, requesting PDFs, scanning documents, and going through your credit-card statements line by line. It’s tax season. And in the United States, taxes are a DIY affair. This is the case even though Washington could probably do your taxes for you. If you earn a salary or an hourly wage, the Internal Revenue Service already knows how much money you make. It likely knows how much you owe