Winning the game hinges on owning the more valuable properties and frequently collecting rent on them. Given this, if you could choose to own one color of properties or streets to start the game, what color would you choose? Why?

What is the most the foolish thing a player just sent to jail can do on the next turn if he or she doesn't own the purple or orange properties?

The 4 railroads don't pay very much rent and thus often are not worth purchasing and holding. However, there are circumstances when it is advantageous to own them. When would this be?