As a business owner here is one of things that IRS hopes you don't know. It keep track of all your expenses and how you record or document them. For example: 1) Do you have a mileage log or use a phone app for that?
2) Do you record your business meetings, where you met, with the date, who attended and do you have meeting notes.
3) Do you meet with clients are tracking where you meet, what you discussed, are keeping the receipts. ( taking pic of them with your phone and electronically storing them.
THE IRS HOPES YOUR ANSWER NO!