Windows PowerShell ISE is a GUI-based application. You can use it to wite, run, and edit multiple scripts and commands in different tabs.

Don Jones is one of the preeminent PowerShell MVPs, authors and trainers. And if anyone knows what you (and the rest of the IT world) is doing wrong in PowerShell, he does.

PowerShell can save you a lot of time on Windows admin tasks. Here's a crash course in Windows PowerShell scripting basics.