Commuting vs Business Miles
The rule people half-remember is "you can't deduct your commute." True, but the word commute is doing far more work in that sentence than most people realize.
The Business Expenses Most People Forget to Deduct
The expenses people miss are not exotic. They are ordinary costs paid on a personal card, in a hurry, and never written down - and they add up to more than most people would guess.
The Mileage Deduction Most Self-Employed People Underclaim
Almost nobody keeps a mileage log during the year. They reconstruct one in April from memory and a calendar, and they underclaim - because a reconstruction is always conservative and always incomplete.