Before using the vacuum, try the leaf blower first. Open all four doors and rear hatch, remove floor mats, loose change, sunnies, etc... BLOW AWAY!!
You'll see a very satifying WOOSH! of fine dust esp from the top of the dash
Then the vacuum (some twigs, small rocks, etc, need to be brushed with vacuum hose to loosen), wipe down, and you're done with interior..