Of course as a full backup (symlinks had built), so all my work and documents are always available online
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As the ball with team members (spread screenshots, documents, ideas in the ball). Very useful, informing you that the file is immediately added and the work is long standing. Ideas are generated)
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How to transfer files to the iPhone. (Although I do not see any advantages over any iFile, just a matter of habit already)
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As USB flash drive (all the homework in the University drag via dropbox), respectively, downloaded from the University web interface.
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Configs for all IDE. A very useful thing, especially at uni, where everything is reset to default after a reboot. Sat down, downloaded the config, fed and IDE just like home, poradil a couple, turned off the computer, everything faded into default by itself)