this works for me and it cost nothing! Light a candle and place it so it's as near to your eye level as possible. Next just gaze/stare at it-focussing just on one part of the flame ie outer or inner bit. Gaze for as long as you can-your eyes may water the first time, but it is quite hard at first to do and requires all your concentration to keep focused therefore it empties yr mind of all the unwanted "stuff". Hope it helps best do it before the 2 Baileys tho (lol)