Decorate your dustbin / garbage bin
I went through a decorating madness phase and when I ran out of furniture and pots to decorate, I decided my grey plastic dustbin was boring and deserved the treatment, so I set to work on it. I gave it a good clean, of course, then I painted it with several coats of chalk paint. When that was well and truly dry, I stuck transfers on it and gave it several coats of varnish/lacquer. That was a few years ago now and it still looks good. The only problem was that it had to be protected from the elements for quite a long time so I started decorating the dustbin (trash can, garbage can, whatever you call it) the day the men collected the rubbish.
Here it is: