There are many devices listed below, both home made and commercial devices. Each device has advantages and disadvantages and you must decide which one works best in your lifestyle.
This Comparison Chart lists each device and rates them using different parameters. This should help you research what device will work best for you. The following list of devices is in no particular order.
Again, research and use whatever method works best for you.
Home Made Devices
How To Install
More Information About Devices
Information on working with multiple o-rings.
More information on the application on T-Tape.