Synthesized voice

Some models of GPS receiver, designed primarily for automotive use, have a synthesized voice that provides you with route-finding information. Although this feature has been available as an option in some luxury cars for many years (for example, in the OnStar system), portable GPS units that talk to you are available. You don’t have to pay monthly subscription fees for them, and you can easily move them from car to car. (Ah, progress.)

If you’re using your GPS receiver primarily for navigation in your vehicle, mount it securely so that it doesn’t slide around the dashboard.

• GPS receiver manufacturers make mounting brackets for in-vehicle use.
• Do-it-yourself solutions can include Velcro, Silly Putty, small beanbags, or modeling clay (the nonhardening type).

Never mount your GPS unit where an airbag deploys during a crash.