Try Evernote for simple note keeping. Your notes will live on your computer, online, AND on whatever mobile device you choose.
Dropbox is a great tool for moving files between your computers and devices. You can also set up public dropboxes for sharing files with your students, or use the Dropittome add-on to receive files from them (or anyone).
Picasa is a great tool for organizing photos and sharing them online.
Wunderlist lets you keep an online to-do list, syncable between multiple computers/devices and sharable with others.
Collaborate! Have students work together for a truly constructivist learning experience.
Google Docs! 80% of our students are on it already. You can create office-type documents and work on them together, "live" at the same time, or separately.
Create a narrated video or slideshow with Voicethread: students can record their comments, comment on someone else's narrative, etc. Contact Asha Kinney to get set up with a Voice Thread account, or try the free version.
Have students create a Wiki of their collective knowledge on your course's subject. This can be done within Moodle, or with an outside tool like Wikispaces or even Google sites.
Youtube. Also, Vimeo for longer videos. Students can put their work up on these sites and just send you the link, vs. uploading large files to Moodle. Youtube even has online-editing capabilities now. You can embed videos into Moodle.