Ask HN: What's a productive day of work for you?

Some days just kind of suck. Some days feel great.

What makes for a great work day for you?

"N hours of coding"

"Yesterday I told myself I'd add X feature tomorrow. I did that today!" (even if it only took 2 hours)

"I ate a good breakfast. I worked out. I played with my kids. I did N hours of work and didn't question my sanity."