Fence painting

It's amazing what a fresh coat of stain or paint can do for an old fence. After years of sunlight, rain & sprinklers and perhaps a dog that has tried to dig under every post, fences can begin to look old and tired. These days you have a few options for preserving and beautifying your fence.
The basic options are:

clear (aka transparent) sealer
Wood preservatives that have various color tints.
Stains that range from transparent/semi transparent/solid body.
Paint.