If you are like me, you drive all over the place looking for Ebay inventory.  Those miles really add up.  I am very conscious of the price of gasoline so I plan all of my activities in a straight route.

Even though I don't leave home every day to shop, I almost always find a deal while I am away from home.   For example, I might need a loaf of bread.  The grocery store is in the same shopping center where I buy a lot of items for Ebay.  I drop in the discount store and find a great deal on a sham.  Voila!  This is now a business trip that can be proved by my receipt.

If you don't have time to record mileage every day, use your receipts to do a spreadsheet.  You can plug in formulas to compute mileage.  This information will save a lot of time when you prepare your income taxes.  If you don't do your own taxes, your tax preparer will appreciate your tracking mileage.