DIY cushions for patio furniture. Super easy. I didn't have old cushions to cover so I used layers of cheap bed padding foam wrapped in batting. Look here for how to do boxed corners that are not covered well http://craftapple.wordpress.com/2007/09/01/sewing-tip-squarely-boxing-those-corners/
I spray painted these ugly plastic chairs navy blue and made seat cushions to spruce up our back porch! This is smart for when you are in the in between of wanting a nice space out back and not having the money to do it- a good waiting project.