Dropbox This app does take a little work to set up, but its an easy way to get your files from your phone to your PC. Your images, Doc files, etc. Set it up to sync with your work PC, home PC and laptops. Its free up to a certain amount of data.
Point Inside Shopping & Travel This app is sort of like Google Maps for the insides of malls and airports. Looking for a certain store - no need to waste time looking for a directory. I have found most larger malls, and every airport I have traveled to are in here.
AppMgr III (App 2 SD) I like to download a group of apps at once using App Brain. App2SD tells you quickly which ones can be moved to your SD card.
Parcels This app lets you see all your package tracking at once. Enter the tracking code once and it stores it for you to track - across different shipping companies too.:-)
TripIt Travel Organizer Free OMG so easy! The app is an extension of their website, as opposed to a stand alone app, but its a lifesaver. When you book travel, you foward the emails to trip it. They store ALL the travel info in the app, and its syncs with Google Calendar. No more printing travel itineraries. Love it!!