Save My Brush Settings as a Preset?

Get the Adjustment Brush (K), then in the panel on the right, click-and-hold on the little icon to the right of the words “Adjustment Brush” and, from the pop-up menu that appears, choose New Local Correction Setting (as seen above left). Give your new preset a name (seen above right), and now your brush preset will be added to this menu so you can get to those same brush settings in the future in just one click. (Note: You can save Gradient and Radial Filter settings, as well, the same way.)