(I relocated this from the middle of a thread in the detailing forum - I was inspired to respond after seeing some hanging tennis balls. However, I thought it was more appropriate here)
If you have a small-ish or cramped garage & could use a device for accurate stopping position, there are now a lot of alternatives to the tennis ball on a string "device"
(I have to laugh - Genie even has an "automated" retractable tennis ball on a string!)
Most of these devices today are unobtrusive, and only "on" for a short duration during & shortly-after parking - and generaly inexpensive, too!
Here's a few suggestions for laser, infrared & ultrasonic parking guides:
http://www.smarthome.com/7188.html
http://www.pedestalcorp.com/cs_open.htm
http://www.opticsplanet.net/atnaut10bacs.html#
http://www.aaaremotes.com/caprpasy.html
http://www.aaaremotes.com/audocarlapas.html
Many, many on-line options to buy these devices, mostly at < $30.
If you have a small-ish or cramped garage & could use a device for accurate stopping position, there are now a lot of alternatives to the tennis ball on a string "device"
(I have to laugh - Genie even has an "automated" retractable tennis ball on a string!)
Most of these devices today are unobtrusive, and only "on" for a short duration during & shortly-after parking - and generaly inexpensive, too!
Here's a few suggestions for laser, infrared & ultrasonic parking guides:
http://www.smarthome.com/7188.html
http://www.pedestalcorp.com/cs_open.htm
http://www.opticsplanet.net/atnaut10bacs.html#
http://www.aaaremotes.com/caprpasy.html
http://www.aaaremotes.com/audocarlapas.html
Many, many on-line options to buy these devices, mostly at < $30.