Using iCloud to back up documents from MacBook

Question

I have a MacBook, OSX 10.7.5.
I use Microsoft Office for Mac 2011. 
Is there a way to back up the documents that are on my computer, such as Word and Excel documents?  If this is possible, how do I do that?  Is there a way to differentiate between the documents on my iPhone and my MacBook?
Thank you.

Answer 1

*"iPod shuffle is intended for use with a single computer. You cannot load music from multiple computers or iTunes libraries onto iPod shuffle like you can with other iPods."*
You don't have a Shuffle. That paragraph does not apply to you.
*Secondly, doesn't that article explicitly say you CAN load music from multiple libraries onto "other iPods?"*
Yes. Your iPod fits in the "other" category.
For this discussion, your iPHOTO library is a folder with computer files. It is NOT part of the iTUNES library and is NOT "synced." For computer files, you need to configure for Disk Mode. That lets you treat available space in the iPod as if it were a small hard drive. You use the finder to copy files to the iPod. This is in addition to the music and videos, etc. in the iTUNES library.
*I guess perhaps a better question might be, "Can I share an iPhoto library between two accounts on one computer without duplicating files?"* No, you're not really "sharing" it, you're simply copying it back and forth between two computers (users):
1. Copy from User-A to the iPod.
2. Copy from iPod to User-B.
3. User-B adds photos and does "other stuff."
4. Delete library from iPod. I'm not 100% certain this is necessary. However, if User-B did something that deletes anything from inside the rather complex library, we want to be certain that it's gone when the library goes back to User-A.
5. Copy from User-B to iPod.
6. Copy from iPod to User-A.
7. Delete from iPod.
+*A better solution: Buy an external Firewire hard drive, configure it for "Ignore Ownership" (File/GetInfo) and put the iPhoto library there. Both users can access it with full rights and priveleges.*+
By the way, photos can be "files" and transferred via the finder as above (can NOT be viewed on the iPod) and/or they can be in the iTUNES library and synced for viewing on the iPod.