Looking for French Idioms

[The NPC]

I tried looking on line, but I only found a few. In particular I am looking for an idiom that is roughly equivalent to the American idiom "Hit the ground Running."

What would that be?

Also, if you are aware of other everyday or fun French idioms feel free to share. :)

Thanks in advance.

[DM Lil" Eschie]

"Hit the ground running": "saisir l'opportunité au vol"/ "prendre la balle au bond"/ "démarrer sur des chapeaux de roues"

[The NPC]

Thank you :)

[Theconiel]

"Maison blanche, blanche maison." (Literally, "House white, white house.") This is about the same as "Six of one, half a dozen of the other."

[The NPC]

That's interesting. Thank you.

I probably should have said this in the original post, but this is for a story I am writing. In case folks were wondering.