When I first started working for Inherit Learning Company I was absolutely thrown into the deep end. They had 18 WordPress install to manage with all of their live sites and staging sites. The best IT people can also be the laziest so I immediately started working on archiving older websites and consolidating the long list into something more manageable.
At the end of my time at ILC I was able to get the number of websites down from 18 to 8. With two of these being WordPress instances I started myself!