Metromile is an auto insurance that charges you per mile you drive
If you drive less than 10k miles / year, this may be a way to save on your monthly bill.
You may already have the best rate if you combine your car insurance with your home insurance.
They will send you a device to attach to your car so they know how many miles you drove. Some people may not like being tracked.
Metro Mile only works in California, Illinois, New Jersey, Oregon, Pennsylvania, Virgina and Washington for now.
Link to Metromile