Yes that's a good idea. The steemit app gives you the option to schedule posts but it doesn't work and posts it immediately anyway lol.
I have written posts in the past and then saved it out onto a note which works great especially if you have photos. To clarify- I wrote a complete post with photis, copied and pasted to a nite and when I pasted it back the photo links all still worked.
I'm sure you know that though.

Anyway, all the best with your endeavors in staying ahead!
I've been dropping a daily collor challenge photo via @steepshot. Then there is at least some movement even if I'm not up to writing anything.

Cheers