Like many Realtors, I use my car for both business and personal use. And every year at tax time, i make myself crazy looking for the pieces of paper that I've kept my milage and expense information on. As a result, there are a lot of deductions that I miss, and it takes time to get the information I do have transferred to my tax spread sheet.
Enter MileiQ. It tracks your milage on each drive. It's got a spot to let you enter expenses, like tolls, gasoline and parking. And it puts together reports for you to file until it's time to send it all to your tax preparer. And I'd recommend it to anyone who needs to keep track of car expenses.