Do you find yourself counting rows upon rows of results from your Exchange powershell commands? You may not be aware that there is a count function built in and can be used to count all of the rows in the results window. I suppose manually counting would be fine if there were a 5-10 lines but on larger results you may find your self counting for days.
The command is easy. Just pipe | Measure-Object to the end of your command.
Here is an example: Get-Mailbox | Measure-Object
The output will be an easy to read table. As you can see there are 42 results from the command I issued above.