13.14Dm11 is especially useful

In C major:

Dm11 theoretically:

D F A C E G

You don't need all six notes.

Try:

LH: D

RH: F C E G

That's:

3rd, 7th, 9th, 11th.

Very rich.

And because all notes come from C major, it sounds very natural in a ii–V–I context.