well, idealy, i would like to go from houston to san diego to la to san fransisco and make it back within 10 days. i assume that ill need more time if i want to do that. it will just be me and one or two other people all around the age of 20, so i doubt we'd mind doing a long stretch of driving. any tips? whats the minimum amount of days we'd need? id like to spend one day in san diego and la each, and spend more time in san fransisco and between.