This one in particular is awesome. It basically forces all presidents (former or current) to consult with the AG before taking executive privilege.
There are also some orders about FOIA that return the interpretation to the Clinton days, except this time with an executive order backing it. All of this in addition to the stuff you’ve probably already heard about, such as banning torture by the CIA, closing Guantanamo, and restoring funding to abortion-friendly institutions.
Also stuff about lobbyists serving on his staff (they can’t) or former staff members lobbying former colleagues (they can’t).
Consider me impressed.
Edit: Here‘s a good summary.