This isn't sounding anywhere near as bad as I thought. Hubby has just reminded me that he has an "aeropress" - it's a sort of manual espresso maker which needs no power supply whatsoever, so I am going to take that to work every day to make my "lattes" (well, microwave heated milk and manually created espressos!!) at my desk! So that has just saved me about £4 a day not having to get them from our Starbucks coffeepod every day!
Thanks Sharron for your info too, sorry to hear the weight went back on but ultimately I suppose it is not a sustainable way of losing weight - that's why we're all in this situation isn't it, that we can lose the weight but we can't keep it off....