Your bike will still function, but you might have flat spots. In the past I've just left it on the kickstand. You could get some stand on Ebay for cheap money. If for nothing else then working on the bike.
I think I'll just do as suggested and move the bike once a week. Didn't think my wife would be too keen on me walking in with more parts and tools after showing up with a brand new Gixxer just last week! LOL