I have heard of some people running without a spare tire and using the extra space as storage....

So my question is, how important is it to actually have a spare tire? It seems to me in case of a blowout, I will need professional help...
Will the coach need to be towed no matter what? And if I don't have a spare, can I get away without towing the bus?

What's the general procedure for fixing a flat with and without a spare?