Picking up on my previous post about SpinVox, once you have a SpinVox account you can also use SpinMyMemo. You call a 0121 UK number from your registered mobile phone & leave a reminder message for yourself which is forwarded to your email account. There's no extra charge for SpinMyMemo and as it uses a 0121 number the call comes out of your inclusive mobile minutes (if you have them). Another reason to try SpinVox.
