You could also try to focus your primary trips during times when the highway isn't likely to have a much traffic. I normally use alternate routes for most of my driving because it allows me to drive slower, enjoy my commute, and still get where I'm going in a reasonable amount of time, at significantly less cost.
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"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"
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