My welding hobby started shortly after I got a bid for a steel staircase. As with everything, the money always causes me to do the Carnett calculation:
- How much is the equipment?
- How much is the material?
- How much did that guy say he wanted?
- How much can I save?
Then I run off to buy the gear.
This of course leaves out the skill to do any of these things -- but the Carnett calculation includes the discovery phase, where I make all my mistakes, ask just about anyone for help, and somehow come out on the other side a more skilled operator. And 50 percent of the time, I really do save money.