When I have a schedule day off (or a few days) or have a vacation, but I stay home; to help stay focused, I make sure to pack my lunch the night before as if I'm going to work the next day. This applies to M - F (my work days).
I find eating on a schedule or as close to one is also helpful.
No equipment necessary, just a brown bag or your favorite lunch bucket, 2 snacks and lunch. This helps so that I don't have to think about what I am going to have while home. It's already planned.