It's a mystery why you aren't rich already. Tell you what would really be useful: A dictionary for when you have those temporary spells of aphasia and can't remember the word or even the first letter of the word you need translated or need to know more about. Whenever that happens to me I always wish there was a dictionary in which you yourself could draw the object in question, and then the word would appear... Maybe an online version with some kind of 'gestalt' recognition...?