Windows Powershell: two commands to rule the all! Well, almost all...

I borrowed a book on Powershell from Amazon, it was short and easy to read, but I only remember two commands from the book: Get-Command and Get-Help. Get-Command lists all available commands and Get-Help can tell everything about that command. If I know that I need to get something, but not sure about the command itself, I can type the following into my PowerShell window: "Get-Command -Verb Get". And if I forget how to use Get-Command, I can always type "Get-Help Get-Command". So I only need to remember one command, Get-Help!