Hey there,
welcome to WPCentral and of course: congrats for your Surface 2
It is really a very nice device and I am sure you will have a lot of fun
Tipps/tricks wise I would name some of the awesome things I do with my Surface 2. Maybe some of them are useful for you...
-You can connect an external monitor to your S2 and use 5 Apps at the same time. If your external has a 1920x1080 resolution, you will be able to have 3 apps running in multitask on that screen and also two more on the surface itself
-You can use network-drives
-If you want to use USB-keyboards and such a normal usb 2.0 hub will work out just fine.
-If you want to pin files to your Startscreen (which is not possible by default) you can use the App "tile a file"
-If you need more space for your tiles / smaller tiles on your screen. Here is something you can do:
Run more apps and show more tiles on your Surface 2 or high-dpi Windows 8.1 Laptop - Scott Hanselman
-For checking your battery-status you can use the "batteryreport"-option in windows. For that just open the command prompt and type in
"powercfg /batteryreport". An html-file (battery-report.html) will be created. The comand prompt will give you the location as a reaction to the command you typed in
- There are a lot of awesome apps you can use the share option with. So if you are browsing a site or using a specific app, often you are able to "share" the content with other apps. Different apps use that option for different purposes. Just try it out
I hope I could help a bit.
Greetz and of course: enjoy your Surface