My first Sims 4 pack was the Spa Day/Luxury Deck bundle, it was a gift. I also got Outdoor Retreat/Cool Kitchen bundle at the same time. If we're talking old school Sims though, it was Livin' Large.
@Writin_Reg - That's pretty impressive, how did you get ahold of the test version of the original Sims? And I knew about the Dr. Pepper stuff, I got it all too, but the T-Mobile stuff? I'm not terribly familiar, was that just a car or something, or am I remembering wrong? And I wanted to get all the TS3 store stuff, but I had started collecting that once the Sims 4 was coming around, and by the time I got into the store had gone super buggy and doesn't work right anymore.