High and tight is WAY too much work. If you cut your own, you have to get the transition between short and long the same all the way around your head. I've tried it; way too much trouble.
I do what I call the "Laziness Stubble" or "Slash and Burn" technique. Essentially, I have distilled the haircut to its simplest and most shiftless and lazy essence.
You see, many people will tell you they have long hair because it's simple. These people are liars. Long hair requires many seconds of washing in the shower and must be brushed before it dries to avoid ugly rat's nests. It also looks stupid under all but really big hats, which often look goofy themselves.
Others will tell you they shave their heads bald because they want simplicity. Sheer mendacity! For there are few things in this world less simple than trying to get every last bit of stubble off your head with a razor without scalping yourself on the installment plan. These guys who have nice smooth shaved heads are repeating such madness every day! Stop the insanity!
Instead, I follow a simple one-step plan. I take an ordinary set of electric clippers with no attachment and I keep running them over my scalp until I don't feel any patches of longer stubble sticking up. This leaves a fine coat of stubble which is exactly the same length all over my head. I am then finished.
I do not comb, brush, gel, mousse, spray, taunt, tease or spank my hair. I also do not drag razors over my scalp, nor do I ever bleed when getting a haircut. I know another haircut is required when my hair gets so long that I can part it, which takes about a month. Thus I am constantly in a state of flux between dark, soft hair of moderate length and fuzzy stubble on a nearly bald head.
During this cycle, however, I have introduced a new wrinkle by growing a full beard along with my head of hair. In another week or two it will be time to cut the hair, and only time will tell how the beard (which is bright red for some reason) will complement the stubbly head. Under no circumstances, however, will I abandon my principles (which include, but are not limited to, cheapness, laziness, and an absolute lack of interest in the styling of hair.)
But hey, at least I'm not an intimidating baby killer. . . .