Nearest work, and nearest home.
Work: Orindi's Deli. Stupidly friendly, wide range of food (fry ups, in fact I just had one, salads, baguettes, paninis, jacket spuds), drinks / milkshakes and that. No cake, however. It's about 2 minutes away from my office. Everything's dead cheap too, like a fiver for a full English with tea and toast. Lovely.
Home: Lolo's Patisserie. Again, really friendly, wide range of food although breakfast seems to only cater for those who like eggs (which ain't me). Their croissants are fucking delish and baked on-site. Do a great coffee. 3 minutes walk away, dead cheap too. Need to go and sample their lunch / cake stuff though.