The US Federal Census is the first source that most new genealogists gain real experience with. This is because it's a fantastic source. From being recorded at regular intervals, to including a wide range of interesting and helpful information, learning how to maximize the usefulness of the US Federal Census will get you started in the right direction. 

Blank Census Forms - Great deskside references.

IPUMS USA - Get enumerator instructions and more. 

Genealogy is such a fantastic way to connect with your own story. But where do you start? The best thing you can do, is start with what you know.