HapiNazi

The basic idea of this program is to record your daily activities and food intake and thus work out your energy balance. 

It also allows you to record "nice" things you've done and weigh them against "naughty" things you've done, should you be so inclined, to try and keep a healthy balance.  And as of January this year it also contains a to-do list (I've just started using it with Desktop Delta to show a task list on my desktop)

It is designed to import files from the US Nutrient Data Laboratory, as this has masses of nutrient information for lots of different foods.  You can add your own from the back of the food packet but in the UK at least this information is fairly brief.

This is one of my bigger and more recent projects so check back occasionally for updates.

HapiNazi Pocket is a very similar program for the Pocket PC, and the files that both produce are interchangeable, with the exception that the pocket version doesn't handle tasks yet.

(hint: use the pocket version to record, and the desktop version to analyse, as the latter is much prettier).