Requires the XML Injector.
Do you wanna go where everybody knows your name? But how can you when barflys are randomized? Enter a bunch of Sims into the Bar Regular Career of course! Yeah ... I didn't name it, I just opened it up.
Unlike some other NPC careers it doesn't require a specific trait; you can just enroll a Sim of your choice into it. I've opened up all the filters and ages from teens to elders (before alcoholics were relegated to Young Adults ... not anymore). The game will generate a few Sims in this career so your best bet is to add a pool of Sims if that's your inclination. Or have them join and, somehow, make money.