My two boys & I keep our hair relatively short (< 1.5"), and have for the last decade. How do I know the exact length? Because we cut it at home with a
Wahl hair clipper, which uses length-labeled clipper guides. That single product has save me literally
thousands of dollars. Think about it, one haircut per month for three people at say $15 for a decade - you do the math.
It's super easy to use to get a great looking cut, priced extremely well, saves lots of money, and it's made in the USA!