As someone trying to quit caffeine for health reasons I can relate to this. My current strategy is to replace coffee with caffeine pills so I can control the amount exactly and reduce it slowly until it reaches zero. Also, having to take pills when I feel bad feels rather ridiculous and makes it obvious that I am addicted.
I'm also having a caffeine problem, haven't considered pills at all. Is there a specific brand / type of pill that works well for reducing amount over time?
Also, I always use an L-theanine supplement when I take caffeine, it's amazing how much it changes things. Instead of feeling all jittery and agitated I just feel less tired and more alert. This is roughly the equivalent of just drinking strong green tea.