Run the Desktop Version
Several high-profile apps for Windows 8 -- including Skype and SkyDrive -- include both a desktop app and a modern version. You can use both... or just the one you prefer. You'll have to download the desktop versions, though, because only the modern apps ship with Windows 8 or appear in the App Store.
If you use SkyDrive on a device with a small primary device, a simple and well-documented hack lets you move your default SkyDrive folder to a removable drive like an SD card. SkyDrive doesn't support SD cards by default, but by creating a folder link, you can trick the program into accepting the card -- a feature that has helped many users of the 64 GB versions of the Microsoft Surface Pro.
However, in the Windows 8.1 preview, you cannot change the SkyDrive location (the Desktop app won't even install!) and at the time of publication, Microsoft is noncommittal about whether it will support the ability to move folders in the final version of Windows 8.1. So if you plan to upgrade when Windows 8.1 is released in October 2013, install the Desktop app and make your tweaks before it's too late.