Love a lot of these ideas.
A pack that allows us to repair clothing would be good. It would add another layer to the existing knitting pack we have.
We definitely need more packs tailored more toward male Sims. A kit pack all about their facial hair (razors, scissors, etc.) or even a "man cave" pack in which we get more TVs, computers, and brand-name games for Sims to play.
An office work pack so that freelancers can go to the office to work, rent a desk, or floor space. Have key cards, etc., as well as allow freelancers to network for their next jobs. It could include a new lot type.
A criminal pack could be a lot of fun! Adding new outfits like burglar and new items for picking locks, as well as new skills. Add more to the hacker career, maybe even a red or blue pill.
I have many ideas, but these are just a few.