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