Intros and outros that don't get old

I'm sure that if you watched enough anime intros and outros, you've seen some that are good enough and just fit the mood of the anime so well that you watch them every time you watch the anime. For me, that would be Kanon's intro, and Simoun's outro. What about for you?

Ai Yori Aoshi (enishi not so much)
Blue Gender (english version, I KNOW noone will agree)

That's really the best imo. I like almost all of them.

Higurashi no naka koro ni's Intro
Ichigo Mashimaro's Intro
Kamichu's Intro

There's more though

-The original Hellsing anime intro
-Kokoro no Chizu intro from One Piece
-The original Yu Yu Hakusho intro
-Houki Boshi ending from Bleach

Um... I'll always like the intro to Trigun. Also, the outro of Naruto with the Jamacan guy singing is pretty awesome.

There are a couple of intros/outros from naruto that I don't think could ever get old, but I can't recall any specifics off the top of my head.

Ugh how did I forget Kamichu.

Maze TV and Infinte Ryvius too.

Saint Seiya intro always brings back memories


Sucks that all you americans missed out on the real saint seiya thanks to DIC for dubbing and editing it to vomit

Witch Hunter Robin always leads into the intro I can't ever skip it, no matter how many times I watch it.

The 2nd Deathnote opening & ending.They're my favorite anime cinematics atleast until the next ones come out with better songs lol

Yu Yu Hakusho's Intro.

Ai Yori Aoshi (enishi not so much) Blue Gender (english version, I KNOW noone will agree) That's really the best imo. I like almost all of them.

I agree with those.
Naruto Shippuuden OP and EN 1 and EN 2.

Bebop's is great still.
Agreed on Trigun.
I'd like to add Last Exile's opening as well.