Not sure that there really is a 'legal' way to download music without paying for it. Unless you go to bandcamp and an artist has a pay what you want that starts at $0. http://bythebirch.bandcamp.com/releases
Yes! The Pandora "Film Scores" station is the best music EVAR for studying, working, thinking, cleaning house, cooking, whatever. It's awesome! (think: Hans Zimmer, James Howard, James Horner, Alan Silvestri, John Powell, John Williams, and more. FANTASTIC!)
This guide informs you how often you need to wash every fabric item in your home from dressing gowns to shower curtains to bath mats and pillow cases. From every week up to every six months, it's certainly very useful.