Theese gets my tears going:
Naruto: -at the Third's funeral
-when Zabuza and haku dies next to oneanother.
Love Hina: Christmas episode and Love Hina Again 3. episode
Ai Yori Aoshi: christmas episode and some here and there. (Aoi the cutest and the most perfect Girl in any anime series i have ever seen. marry me?
)
Ichigo 100%: don't know why but some places the tears always comes.
Bleach: when Ichigo fights against the Hollow that killed his mother
(Hollow code name: Groundo Fisher)
Dragonball Z: -when Son Goku sacrifices himself to kill Raddits (Gokus brother)
-When Vegeta cries and tells his life story on Namek and then Freeza kills him.
-When Son Goku sacrifices himselv by teleporting himself and Cell to King Kai's planet right before Cell Explodes.
Black Cat: -when Creed tries to kill Saya, and Saya lais in Rains lap watching the fireworks, then she dies.
Grave of the Fireflies man what a sad story... my heart blead
Wolf's Rain: I think i Cried everytime some of the good guy's died. specially at the end. (the OVA episodes)
Kanon: when someone of the girls died or dissappeard, man some tears really came out...
Air: the 2-3 last episodes.... watch it and you'll understand
and many many more.
I think Anime / Manga require one to cry sometimes.
it makes the whole experience better =)