Art_Deco said... get a home hair trimmer like a Wahl. Then you can do your own touch-ups. I did that myself for decades, totally eliminating barber visits. A challenge is the back, for which you need a hand-held mirror with your back to a wall mirror. would pay for itself after a couple of visits. Dosnt bother me but my husband cuts my head, sometimes things can go wrong. Dont get a battery clipper.
I made haircut mistakes when a teenager. Later I did pretty well. Easy in the summer when I did an all-over Army buzz cut for field work wearing a hot helmet, and needed to be able to see ticks. Just used the ¼" comb attachment and ran the clippers equally all around my head.
But my haircut wasn't perfectly professional looking. When a local gay barber shop owner was making donations to community causes that we supported I decided to encourage him, and began having him give me haircuts. Over 3 years later I still do.
My Father, who had one of the most subtle & subversive senses of humor I ever knew, once told me this:
"Robert, if you want success & satisfaction in this world remember the rule of the 3 Bs."
Young me in a squeaky little boy's voice: "Gee, Dad, what's that?"
"Always be on good terms with your banker, your barber, and your bartender."
I omitted the barber for a number of years, but I've finally returned to his fatherly advice.