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