Do this for yourself! A simple bunch of flowers - or even just one - can brighten a room and your whole day. When I was a college student, my apartment was right across the street from a florist and so fairly regularly, I'd go and buy the cheapest bunch they had. For several years after graduating I'd treat myself to fresh flowers, but unfortunately somewhere along the way, the habit died. Too bad, really.
So let's not let practicality rear it's sterile head and interfere with the joy of fresh blooms! Go out and buy some flowers!