As well as being a neat freak, I also have a compulsion to be organised.
Searching the net this week I have found a great little application for all Mac users that will make those little day-to-day tasks easier to manage.
Anxiety (http://anxietyapp.com/) is a free application that adds a simple yet effective check box list to the toolbar of OSX. Items can be added and marked off in a matter of seconds, and the data can be synced with both iCal and Mail.
Give it a bash, you'll never forget anything again... Ever.
Nice one!!