Prospective memory may be defined as remembering to remember (Winograd, 1988) or remembering to perform an intended action. One difference between prospective and retrospective memory is that instead of recalling past actions, events, or knowledge, prospective memory is self-initiated and does not operate directly on external stimuli.
This is the term LeBerge uses in his book, I believe. I have also had difficulty training myself in this way, but I am aware of how important it is as I have continually encountered my dreamsigns and forgotten to do RC's.
A method that I think I am going to try is to start by using one action to trigger another. Example: we write a shopping list in order to remember what to buy in the store. The list itself is a mnemonic tool for organizing our grocery shopping. Maybe if we are able to start with one recurring item, we can "practice" prospective memory? For instance, at some point during the day I take a ping pong ball and put it in my underwear drawer. I know that it's there. The next time I get ready to go into the drawer I remind myself of it's location and lo and behold, there it is. I then take it and put it in the cabinet where my coffee cups are. The next morning prior to opening the cupboard I remind myself it's there, and lo and behold there it is. By repeating this process, I think one gets "trained" to remember. Maybe I'm wrong, but that's my idea.