Fish from Marks and Spencers - it's expensive but actually tastes of fish and the fillets are boned properly. Sea bass is my all time favourite and salmon and trout are great with a bit of truffle oil.
My new luxury will be my dog and two kittens that I am getting when we move - I really can't afford them as I am on sick leave for a couple of months, but it's worth it. Looks like I'll be eating cheap fish and rice for a while - either that or training the dog to catch some for me!!!!!