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