Ask HN: What are some creative ways to save on income taxes as w2?

Obviously max out 401k, have kids, move to state with no income tax, buy a house, etc.

But what else.

Only thing I can think of is start legit business with lot of upfront costs, but not being a CPA, who knows?

I remember leak a year ago where it was revealed how lots of rich people were paying almost no taxes, pro-publica?