[Traits] Add, Update/Refresh or Overhaul?

I think the main thing is that each trait should do more. Make them do certain things autonomously that they won't otherwise do, but equally important not autonomously doing things they hate. 

And added to that should be unique interactions for them, and maybe replacement actions that are not just in the description but actually shows a visual difference. 

Let's take the lazy trait for example. I don't think it should be merged with slob, someone lazy could still be neat. But the lazy trait could plausibly affect a whole lot of things. 

They should NEVER clean, work out, cook or do other stuff that requires effort. They'd still shower of course, but they'd never clean up after themselves unless told to. They should have the lazy spin when changing clothes that lazy sims had in sims 2. Should also take longer to get out of bed with new animations if you wake them up before their energy is full and they could get angry from it, and they'd sleep longer than other sims when their energy bar is full. Should also be able to lay on the couch and watch television, when there is no prepared food around, they should always grab a quick meal and never cook. The almost non-trait of sims 3, heavy sleeper, could be incorporated into lazy sims too, so they'll sleep through nearly everything. Noisy neighbours, earthquakes, hauntings, etc. That way you get a nice benefit out of being lazy too. 

I also think that with inventions, some traits should allow for unique inventions or creations that you'd basically need to have that trait for to come up with it. Like a lazy sim could maybe be able to create the ultimate recliner chair that's very comfortable to sleep in and maybe has a compartment for snacks or such, so they can get something to eat while using it without having to get up. 

The geek trait should do A LOT when you visit Batuu. There should be a new 'Geek out!' interaction that makes a geek sim very happy, like for example with the millenium Falcon. They'd stand there gushing over it all excited, and could do that interaction with all kinds of geeky things. Maybe also with specific characters. But they could also maybe get some unique interactions and extra rewards. They should advance through the faction ranks faster, and could have access to an additional kyber crystal and lightsaber hilt. 

The slob skill should be stronger, as is, these sims still want to shower when very dirty. That should not be a thing, THIS should be the sims that aren't bothered by not showering. They'd still do it on their own if getting visibly filthy, but should not get a negative moodlet if they don't. Like if they are doing  a work out, they can just keep going no matter how dirty they get. Slob sims could make more of a mess, making their surroundings dirtier faster, not bothered by messes. The lazy sim could still be bothered by a mess, but not enough to clean it up. Making a sim both lazy and a slob should really make them a rough housemate to deal with. 

Probably still not as bad as a mean sim should be though. They should be a terror to anyone they are not friends with. When angry they should be picking fights. And angry or not, they should be automatically doing mean interactions with anyone they have negative relationship with. Socially, the mean sim should be the worst to deal with. 

Evil sims should be easier to live with, unless you're a good sim or have other related traits like idealist or generous. Generally speaking, the evil sim should be way more ambitious than a mean sim. Like the mean sim wants to punch their enemy in the face. The evil sim wants to destroy their entire life, and could be able to do all kinds of evil schemes. They should be incapable of mourning anything or anyone, no heartbreak over a divorce. Evil sims should be able to do all kinds of things to their enemies that no other sim can, because only an evil sim would think of it. Like maybe have a whole lot of pizza's delivered to their enemy at their expense, be able to spread lies to try and get them fired, fabricate scandals to famous or royal sims, and in every career they should be able to use it for evil.