Go ahead, hire a driver.

For some people, taking an Uber to and from the office is cheaper than driving themselves, according to a study of 20 cities released Tuesday by personal finance site NerdWallet.com.

Don’t believe it? You would save this much money every week using Uber versus your own car if you live in one of these 8 cities:  San Francisco ($83 saved per week), New York ($76), Chicago ($39), Detroit ($6), Washington D.C. ($35), San Diego ($16), Miami ($26), and L.A. ($27).

This can mean serious savings over the course of a year: In San Francisco, more than $4100, in New York more than $3700, in Chicago more than $1900.

Plus, by taking an Uber, “you may also gain personal time,”says Amy Danise, insurance expert at NerdWallet, leaving more time for napping, knitting or Netflix.

The study, which took into account the average commute distance in each city, compared the cost of taking an UberPool (and when that wasn’t available, an Uber X) versus the cost of getting to work in your own car, which included gas, insurance, wear and tear and parking.

Of course, there are other factors to consider, namely that UberPool requires you to ride with strangers and that, for some people, parking isn’t a factor. (In that case, it is only cheaper to Uber to work in Miami, and in L.A. it is roughly a wash.)