No Spare Tire!

I have had two motorhomes before picking up our third on Friday. During the walk through I discovered that it has NO SPARE TIRE! I asked about it and was told that most new motorhomes do not have one. My 2003 Class C had one mounted under the back in the bed area and my 2007 Class A had one mounted in a storage bay. I measured one of the tires and found that it really would not fit in any of the storage areas. In over 45 years of pulling trailers and driving motorhomes I have had several flat tires. I can not imagine driving without a spare. In fact I used to carry two spares when I pulled tent trailers since tires that size were hard to find while on the road. Have any of you out there had a flat tire and not had a spare? What complications did you have? Did things work out to your satisfaction?