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