Riding a bicycle is a great way to keep in shape, and helps you save on gas money. You need to make sure that you and your bike are sporting the proper gear to stay safe. At minimum, you should be using a helmet and reflective material/lights so that you can be seen in darker settings. While riding, you need to make sure that you are courteous to the vehicles around you by giving signals as to when you’re turning.
If you’d rather not be forced to remember what the hand signs are that indicate right and left, you can get the IGGI Signal Pod. This will give an LED turn signal system on the back of your bike. You’ll also have a hazard light and horn to give warning to those nearby. To install it, you need to mount the control unit on your handlebars, and put the pod on the seat. It runs on 3AA batteries, and costs about $18 for the set.