Today’s mashup is one you can create with your Google location Data. Assuming you have an Android phone and haven’t turned off location tracking, you can download your data then use this free heatmap tool from the folks at Modern Production Concepts Software get get your results.
Of course, you are taking all of that data a private company is keeping on you, and submitting it to yet another company so there’s a lot of trust involved here. I’ll leave the decision making up to you.
That being said, Lifehacker has some pretty good instructions despite not mentioning that the site they link to is for the paid service which hides the link to the free service near the bottom of the page.
And yes, I do feel like I live on a 50 mile stretch of I-80.