Wouldn't it be great and not too hard to put a simple on Contact Keyword search.
You click a button, type in the word you are looking for and hit Search. It searches only on the contact you are on. The cursor is then ZIPPED to the word you were looking for. Keep clicking "Find Next" to find word again.
This would be amazing when you have 50 histories and 20 notes on an important client and save SO much time.