Assuming one remembers where one put one's tax form by the time the IRP5 arrives from Bremner, and has on hand a functional pen, stapler and calculator, one is suddenly beset with memories of why one didn't do accounting at school, distracted by more interesting possibilities like scrubbing the kitchen floor, or overcome with panic at the thought that someone somewhere might have made a mistake which would make the numbers refuse to add up... a mistake which was unlikely to be in your favour!
But someone somewhere took pity on me, and made things a whole lot better. SARS have introduced e-filing, which allows you to submit your tax return online! A brief registration process, and 24hrs later, your tax return has been issued online and you're ready to go! The entire process of submission took about ten minutes, and it's all available online in a history file should you need to go back to it - unlike the act of faith putting it into the mail entails.
There's still time, for anyone who has yet to submit - visit the SARS site for more information.