The last 2 suck. The first only works if you know the latest ideas.
Three Gambits in the Dutch Defense

They are dangerous enough openings as you don't face them often to keep the memory of the theory fresh. Further, pleanty of Dutch players start eith 1.e6 or transpose into Dutch set ups to avoid those positions.

If you blitz …h6 to kick the knight then you get mated. But if you play …d5 black equalizes.

1. Take the first pawn, not the second;
2. Try to play …d5 (I remember this by “Dutch Deviation, the d is the pawn i want to play”).

They are dangerous enough openings as you don't face them often to keep the memory of the theory fresh. Further, pleanty of Dutch players start eith 1.e6 or transpose into Dutch set ups to avoid those positions.
I myself play 1...e6 to avoid all anti-Dutch lines, not just gambits (i.e. 2.Bg5, 2.Nc3 against which I play 2...Bb4, etc).
As White, I do play the Staunton Gambit. If they play 1...e6, I go 2.e4! You won't get a deferred Dutch against me.

Also avoided.
1.Nf3 e6. If 2.d4 or 2.c4 or 2.g3, then 2...f5. If 2.d3 or 2.e4 then 2...d5
Staunton Gambit
Krejcik Gambit
Omega-Isis Gambit