I heartily endorse Henry Krinkle's "Nescafe Classico" and Jeri's Starbucks pods. The Carte Noire is excellent, as well.

The Nescafe Classico is made for the Latino market in the West, it is not the same as the regular Nescafe. It develops that Nescafe makes different instant coffee for the different markets it serves around the world-- Indonesian Nescafe Classic is reputed to be their best(I haven't been able to find it in the US, so I can say no more)   their Alta Rica is also supposed to be excellent, and I believe that is available in the UK.

In better days, I was a coffee s...well, a person who liked really good coffee a lot. These days, it's instant most days because its cheaper and you only waste what you leave in your cup.