[dripton]

In the (famously overgenerous) GURPS Fantasy 3E jobs table, Artisan/Crafter required any craft skill at 14+ and paid $80 times skill. Leatherworking is DX-based and Easy, and doesn't require particularly expensive or complicated tools, so it was an excellent pick for a high-DX character who wanted to make some money between adventures. I don't recall it ever being useful during adventures, though.