For my job, I am at a differently client every week. My boss pays us for mileage (the difference between what it takes to get to our office compared to the distance it takes to get to the client). Every payday, my boss probably cries a little because I'm actually making money off of the mileage reimbursement....
One co-worker lives 40 minutes away from the office and was looking to buy a new house. I tried to convince him to move closer but he wouldn't listen to a word I said.. His excuse was because taxes are higher over here. However, the amount of money he must be spending between gas/car maintenance and getting zero mileage reimbursement because he lives so far away from the office would completely make up for the higher taxes.
Back to the point..While my co-workers are actually using the mileage to cover their expenses, I'm being paid for every single mile I drive because I live 2 seconds from my office. I sold my previous car for a better mileage vehicle after I started working for my company. To completely fill my tank, it's $38 currently. I fill my tank no more than once a week. Every day that I drive to a client's location, I typically average $20 in mileage.
So lets do the math:
$20 per day x 5 work days a week = $100.
$100 weekly mileage - $38 to fill my tank = $62.
Let us take this one step further:
$100 mileage per week x 50 weeks (rounding down b/c obviously I'm going to take vacations) = $5000
$38 x 50 weeks = $1900
Yearly profit: $3100.
The money I have gained makes up for all my gas, car maintenance, and even a few of my car payments.