2. Buying Cheap Tools
Instead of buying my first-ever circular saw when I did, I should have waited a few weeks until I'd saved a little more money on my first-ever construction job. At the time, the guy I was working for, Twig Perkins, said, "Don't buy that cheap piece of stuff (he didn't really say 'stuff'). It'll break in a week." Actually, it took about a month for the motor brushes to fry, but by then the spring on the blade guard had broken and the saw's foot was bent. Fortunately for me, the guy at the lumberyard refunded my money and let me put it towards the saw that Twig had recommended at first.