Coffee addict?
COSTA?????
For my coffee hit at work, I often use an Aeropress (
http://www.aeropress.co.uk/ ), using coffee from my local coffee shop. Either Stokes Full of Beans Espresso roast, or Kenyan Black Lion as a bit of an indulgence from Imperial Teas, Lincoln.
Aeropress is a litlle bit of a faff, but it is so worth it. It effectively produces a shot or two of espresso, which you can either add frothed/foamed milk, or top up with hot water to make an Americano.
Also: Keep you ground coffee in the fridge, preferably in an airtight container,