Here is mine. There are other wallpapers, but they all have one thing in the center of the screen and the rest clear. Sometimes I open rainmeter or rocketdock with some shortcuts.
You can create a document (Or folder for separate and dated "entries" (Different documents)) in google drive that is shared and anyone with the shared link can view it.
You can create a google account with an existing email address if you do not have or want to create a gmail address.
To set...
Personally, I have always noticed that chrome uses a lot of memory.
In this instance, did you just sign in so that it started to sync bookmarks and plugins? Chrome uses about 4GB of memory for me with the amount of tabs it has open. I have always assumed that this is normal for the Chrome...