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