I do, well pretty much every day. Today I had strawberries, raspberries, blueberries, plums, grapes and pear for breakfast. Its sometimes a bit of a challenge in January but you can usually find strawberries in the shops year round. I do it because I really like them, they are really healthy to eat and I do not believe that this sort of luxury should be kept only for Wimbledon week. So many times you might find yourself yearning for that little luxury item or activity only to dismiss it as only being for Sundays, not allowed to have it if you haven't been working hard, can't do it today cos the money was allocated to buy toilet roll.
I say stuff all of that. Allow yourself some degree of luxury regularly and you will find yourself feeling great. It will really boost your self esteem. It doesn't matter if its buying expensive soap every now and again, picking the supermarket "finest" label this week instead of the "everyday", swapping your newspaper for a magazine or eating strawberries every day. It may cost you nothing if your luxury is a walk in the fresh air admiring a view. Whatever it is give yourself permission to regularly pamper yourself just that little bit and you'll feel fantastic.
After all if your best friend came for breakfast you'd want to give them strawberries, so why treat yourself less well than you do your friends. Make every day special and there is so much more to live for.