Thinking Out Loud

Don't you just hate it when someone asks you to do something and they press on you the fact that it is important by mentioning it several times and always following each repetition with "Please don't forget" so you make this your priority in your mind until you can do it and as soon as you have a spare moment you say to yourself "Now, what was I supposed to do" and yes the inevitable in this worst case scenario is that you indeed forget...
I was supposed to do something...what was it???