My little guy will be 2.5 in a couple of weeks. He brushes his teeth by himself, I then go over them and brush them again, and will likely keep helping him for some time, say until he's in first grade or so since brushing his teeth is important to his health.
He wants to dress himself so I give him his shirt, pants, socks and sandals or shoes and he does a pretty good job, needs help pulling the elastic waist shorts and pants up over his bottom sometimes, or re-positioning his socks, etc., but he can do it pretty much on his own. He even pulls his hoodie on, lol : ) Looks like he's on track to be doing it all on his own in the next 6 months or so.