As he told Details magazine: "My life is on the road, man. I need to keep moving."
When the Texas native came to Vancouver in 2004 to film Two For The Money with Al Pacino, he lived in his Airstream at the Capilano RV Park under the Lions Gate Bridge.
He was dating Penelope Cruz at the time.
McConaughey then spent three months in 2005 driving 8,600 miles over "the highways and byways of America" promoting his subsequent film, Sahara.
Like any good road tripper, he wrote a roadtrip blog - "McConaughey's 'Sahara' Stream Journals.
In his case, it was posted on MTV.com.
-McConaughey's Airstream, "Sahara," taken by Matthew McConaughey;
-"McConaughey Out of the RV, Into an Actual Home" TMZ.com (Nov 4th 2007)
-"Matthew McConaughey" David Amsden em>Details
-"A movie star who stays in a trailer: He's just a good ol' Texas boy" -David Spaner. The Province. Vancouver, B.C. (Apr 8, 2005)