I drink a lot of soft drinks when I read through VNs (mostly Sprite), and sometimes I munch on chocolate if I have that on hand. If not soft drinks, I just settle for some delicious juice; sparkling preferably.
Easily Cardcaptor Sakura.
Next one up would be Samurai Champloo, as it has almost everything I would ever want in an anime. Style, good plot, amazing music, great and memorable characters, amazing fight choreography, and plenty of humor.