I could not possible make do with only 23 books.
Nor could I possibly find 23 bin bags of clothes that are surplus to requirement.
I certainly could find 23 tasks and projects round the house that need attending to, but as DH is not well enough to do all of them, and I cannot, as I don't have the know-how, we might just manage 3 or 4 in the course of this year.
I am however seriously considering starting a task I can do: stripping wallpaper off the kitchen walls and ceiling and papering and painting it.
I am also encouraging DH to start taking a little exercise every day - he starts, then stops, usually with good reason, but then it is back to square 1 when he starts again.
Right now I am concentrating on familiarizing our two half-grown cats with the garden, so when I do start decorating in the warmer weather we don't have to worry about keeping them in.
It's a good idea, but why 23?