Either way if I was paying the water bill I would lock / remove outdoor spigots, put in low flow shower heads, and install low flow aerators on all faucets. (biggerpockets.com)
I got a free to me low flow shower head just by cleaning out a closet and finding a new in the box Shower Massge I got as a gift 10 years ago and never installed. (crunchydomesticgoddess.com)
My other favorite water saving tip: with a low flow shower head (of course!) (crunchydomesticgoddess.com)