When I don't feel like working out, lifting weights or doing...

When I don't feel like working out, lifting weights or doing serious cardio, the best thing for me to do is just go on the treadmill and walk. I walk and listen to music and 10 minutes will go by, then 15, and then I'll speed up a bit. Once my blood really starts flowing, I'll get a second wind and then I want to work out.