Cleaning day? Or not?

Today I am thinking about cleaning my room or just lay in bed all day.. I think the latter is the best choice but I don't know... I wanna do something, like paint my walls, or rearrange my furnitures, or just play Sims 3 and paint my walls there, atleast it's easier right? I don't have to buy real materials and I don't have to spend as much. But I still don't know... What do you think?