Dim Dash Lights

Be very careful not to make your instrument panel too bright. Most people never touch the rheostat, and just run them at max intensity...not realizing this significantly degrades their critical seeing ability, even though there's no discomfort glare involved. Don't overlamp the gauges and use that rheostat! The gauges should be just bright enough to read quickly with one glance. No brighter. And it's better to have a color somewhere in the warm white/yellow/amber range, rather than blue/cold white, which screws up your night vision much more at any given brightness level.