Powershelling properly
The best ways to be able to look at your scripts some weeks/months/years after writing it is to script properly.
Here below is the format at always use, I use it as a script template :
Microsoft Script Explorer for Windows PowerShell
Microsoft Script Explorer for Windows PowerShell (pre-release) helps scripters find Windows PowerShell scripts, snippets, modules, and how-to guidance in online repositories such as the TechNet Script Center Repository, PoshCode, local or network file systems and Bing Search Repository
http://www.microsoft.com/download/en/details.aspx?id=29101