I love feng shui principles, especially because you don't need to rush out and buy a bunch of new home and garden decor to improve the energy.
I read that the best thing you can do to improve the energy immediately is to clean the room. The second is to add plants.
There is an old Chinese proverb that goes, "If you have only two coins, with one buy rice and the other buy a flower." In other words, in life one must eat to survive but also experience joy.
What are your great budget feng shui ideas?