I love the Xamarin iOS Simulator for Windows, much easier than VNC'n to my Mac or having to constantly use my iPhone when I'm only playing around with UI and stuff.
It has all the features you'd expect like show/hide keyboard, home button, rotate, trigger call etc. It also has capture screenshot which would be super handy.
Tonight I needed to take a few screenshots so got trigger happy with the screenshot button but.... I couldn't find where they went!
To cut a long story short I ended up using Process Monitor to find where the files were being written and it turns out they go to a Xamarin\iOS Simulator folder within your pictures folder. I never use mine on my development machine so didn't even consider checking there.
So two tip Pro Tips: