Water barrels are a really good idea no matter where you live. You can store rain water for use at a later date. Most rain barrels have lids so you keep bugs and trash out. Simply connect your downspout from your gutter to the barrel. Some have filters that knock out gutter trash before it gets to the barrel. Now this water is not for drinking as its not been treated, rain water can only be drunk if fresh. But for watering lawns, plants, and such its a great idea.