Memory Loss
After a long time in trying to remember, I've realised that I can no longer remember my passphrase for my old PGP key (0x3D33ADCB). This is bad. From this lesson I've learnt that it really is a good idea to have a pre-generated certificate of revocation for just this circumstance.

As it is, I've had to contact everyone who's previously signed the key and ask them to revoke their signature. I'm feeling pretty silly at the moment.

Not many people used my old key, which is good. And AFAIK, none of the e-mail addresses on that key still forward. This is probably good.

For those who care, 0xB1479E55 can be used to communicate with me from now on.