Maybe not do as I did! While in Italy the coffee culture drew me in very quickly, as it was more or less expected that you started the day with a cappuccino and continue throughout the day getting progressively stronger from then onwards.
When I went back to the UK coffee, at that time, didn't have the same market as today so specialist coffee shops were few and far between...I went cold turkey very quickly...and boy the head pain, indescribable! It lasted three days! Not fun...so my advice would be to wean yourself off gradually!