I have tea, coffee, instant chai latte (please help yourself -- I think it's disgusting) and de-caff tea and coffee and some rather wonderful thyme tea. Also chocolate. The local shop were selling four easter eggs for a pound. No wonder I'm overweight!
In one of the comments last week I touched on 'notecards' as a way of keeping track of characters (and confessed it was something I should do but didn't). What I do, though, is use a variety of noteboarding tools to help me keep track of the plot and subplots.
I regularly use Write It Now and have just started trying Text Block Writer and I've tried a few others in the past.
How about everyone else? Do you use paper? cards? software? or do you keep it all in your head?