There's tons of examples if you actually care to look. Trash pickup is an easy example. I've lived in places where it was managed by the city and places where it was run by private companies. The city always showed up on time and never raised prices without justification.

Guess what the private companies did on a regular basis? And if you want to talk about efficiency let's consider whether or not it would be better to have four different companies running four sets of trucks on four overlapping routes through the city as opposed to one entity handling the whole thing. The only thing efficient about the private companies running things is the way the money is siphoned off to some rich asshole instead of being managed by accountable local officials.

The police and most three letter agencies, when you understand their purpose is to protect the wealthy.

the government

Who said shit about the government?

We should seize the means of production. Us.

The difference is that the government has no shareholders or incentive to turn a profit, unlike companies. However it can sell luxury goods at a high price, to subside other goods like food or housing from the markup.

A lot more frequently than I see private industry run something correctly/efficiently.

It's not the government who would control the means of production, it's the workers. In theory they might use a vanguard party to seize it non-violently and then redistribute it, so in that case it may pass through the government's hands. But that's not the only way to seize the means of production. When properly done though, it would end up in the hands of the workers, every laborer owning their own tools and equipment so they can work for themselves instead of some faceless corporation.

USPS?

train networks, schools, healthcare, heck even social housing, here in central europe