What do you tell yourself on days you really don't want to move?

We all have those days when the reasons not to exercise feel very convincing and the couch feels very persuasive. I'm less interested in the inspiring days and more curious about the ordinary, tired, unmotivated ones — what actually gets you moving anyway, or helps you make peace with resting intentionally rather than just giving up? I think we can learn more from each other's honest low days than from our highlight reel ones.