I am a father of 3, and two of them are boys. That is alot of trips to the barber throughout the years. So I invested $29.99 in the Wahl Clip-n-Trim kit, and enlisted the aid of my wife.
The kit comes in a nice black case and includes - the electric trimmer, 11 different length/style attachments, scissors, comb, plastic gown, cleanup brush, oil for blade maintenance, and a great instructional video. In other words, everything that the barber has, but you only have to pay a one-time fee of $29.99!
My wife didn't really need the video. Men's/boy's haircuts are pretty straightforward. Don't be worried that you won't do a good enough job. It's just a matter of choosing the right attachment. No trips to the barber several times a year, costing gas and time, times the cost of 3 haircuts plus tips. It paid for itself the first time we used it! Imagine how much we'll save in the long run. And I know from personal experience that these clippers really last a long time.
Wahl is the number one brand of home hair clippers, and can be found at any department store or pharmacy.