If you're still lugging a bulky diary around wherever you go then quite frankly you need to wise up and get with the program, man.
These days you can use your mobile phone as a diary, thanks to apps like Life Remarks. This free software allows you to keep track of your daily life, entering notes to yourself and recording details about any important appointments or events you need to attend.
Life Remarks is very easy to use. Each day of your life is represented by a sheet of paper in a notebook. You can quickly flick through to a particular date using the 'Go to day' option. All you need to do is start typing using the keypad and your text note will be written onto the paper.
Life Remarks also includes an appointments feature, where you can insert the title of what the event is, and the time you need to be there. This then appears above the note on the diary page. Unfortunately, Life Remarks doesn't include any kind of alarm functionality that will alert you to when an event is due. It's a case of opening the app every day and checking what you've got on.
Another neat feature of Life Remarks is the ability to export your diary, although it will only save it out as a text file. The program also includes password protection to prevent prying eyes from seeing what you're up to.
Life Remarks makes for an easy way to log what you're doing on a daily basis, though it lacks any kind of advanced task management functions.