I actually have a year-round tree.
I love Christmas lights, so I don't limit them to just once a year. I used to have a couple strings of hundreds of lights wrapped around two chairs. One night when I was at work, my parents snuck in with an artificial palm tree (in the theme of living in a hot climate,) took all of those lights and wound them around the whole tree, then slipped away like two little elves into the night.
I came home in the morning from work to a colorful, awesome blinking tree and have had it ever since.
Over the years, I've even added extra lights (probably just about 1 string shy of being a fire hazard,) and all kinds of trinkets my friends have sent me -- owl socks, crocheted ornaments, two birds (Blueberry the blue jay and The Crimson Cardinal, who looks a bit like a feathered bandit!)
The tree itself has even been bequeathed, "The Party Tree," as it looks like it could be a centerpiece at a big tropical party.
My idea of a "party" is a stack of books with an endless mug of tee, and The Party Tree is always happy to supply just the right ambience year-round.