Heading to the relatives' place for a long stay? Working on a Mac that's not your own? Using the new Mac App Store's easy licensing and installation, you can create a new user account and quickly set up your favourite software.
The Web Worker Daily blog positions the Mac App Store as a remote worker's best friend, as long as the places you're working have up-to-date Macs:
As long as you're using the software for personal use, you should be able to log into the App Store from any Mac and download the apps you need. Once you're done, you can just uninstall your software, transfer any stored data to a thumb drive or to storage space in the cloud (if it isn't already automatically synced, as with apps like Evernote) and go. You'll be able to spend less time on setup and configuration, and more time actually getting work done.
WWD also notes that app gifting is on its way, so bosses and team leaders can quickly thrown their remote workers new apps they need. Have you found uses for the App Store beyond the basic app buying and downloading?
Why the Mac App Store Is Great for Remote Workers: Online Collaboration « [Web Worker Daily]