From: New York, NY Registered: 2009-10-02 Posts: 458 Website
-Add more cards (I make my own cards, rather than using already-made packs, so each one might take me 2 minutes or so)
-Look at the graphs Anki generates and decide, for example, how many new cards to add so that my repetitions per day don't get out of control
-Read something in Japanese
-Play Facebook games, fool around on the internet...
Typically I do around 25-30 minutes of Anki reviews per day, so I do it in 3 10-minute sessions. Unless I'm completely out of time, I like to get them all done before I go to work, so I don't take long breaks; maybe 5-10 minutes.