For those who either do not get any sides and those that get some sides but can tollerate them, clomid does help post cycle progam. (Or a nolva clomid combo like what wrongun's response describes.)
You should consider adding some hebal's in your post cycle. PF has a couble interesting combo's or make your own - BAC as decent prices. Examples: Avena Sativa, Nettle, Milk Thistle, and a few others discussed a lot around here lately.