rules for travel      
             (esp. biking)            
                                        
                                          
                  one                   
          "detour before retour"          
 if not necessary, you should never  find 
 yourself  on  the same  part  of  a road 
                  twice.                  
                                          
                  two                   
             "the kalmar rule"            
 you get one  glance at  google  map  per 
 person  and  evening. you can  not  show 
 your   map  search  to   anybody   else. 
                                          
                     
 "rules are  meant  to  make  you think a 
 bit   before   breaking   them"   -   t. 
          pratchett (paraphrased)         
                                          
                     
          see also: a nice path