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