Here's one way of helping with finding messages as well - If I were to
sort my inbox based on the Name of the person who sent it to me (so I
would click on "From"), the number sequence at the top (that lists how
many pages of email you have), should change from numbers to
letters, or at least show letters. This way, if you wanted to skip to the
letter of the person (Sam - for instance), you wouldn't have to dive into
every page to find him, you could just click on "S" and it would take you
to that letter.