Windows 8.1 finally makes SD cards in tablets USEFUL.
I now notice that I can finally store my music and picture by default in my SD card. Previously, you could store music in your SD card but it wouldn't be found in the Music app unless you directly opened the drive every time.
This allows many people to save space on their SSD while maintaining their music library.
I however wish they allow you to save your SkyDrive directly to the SD card.