4. Album digital download
If you've picked up a special edition LP that comes with a download code, sure, put those tunes on your iDevice of choice. But don't ever settle solely for that type of digital download for one of your favorite albums. They typically sound like someone snuck into a concert with an outdated tape recorder and held it in the air like a lighter all night, then sold you the results.
We're not knocking digital downloads entirely. Services like HD Tracks offer music in high-quality formats, and contrary to what some believe, the files available via iTunes are actually very good. You can enjoy your music without a turntable. You just don't want a recording to sound like something a spy smuggled out of a fascist dictatorship.