A couple of days on the road made me realize that I need a simple desktop utility that will download files when I sleep.
I can take full advantage of the aria2 (The next generation download utility) at home but prefer to use uGet (Open Source download manager for Linux desktop and Windows too) when I am out of home without direct access to the data.
uGet offers wide range of interesting features like Queue Downloads, Clipboard Monitor, Multi-Connection, Speed Limits and most importantly scheduler shown in the screen-shot below.
Full list of supported features can be found at the uGet Features page.