THEME:    
34 blocks, more than usual for a themeless Saturday   
GOOD ONES:     Love letters?   XOXO   
Slaughter with a bat   ENOS [he was a baseball player]   
Treadmill settings   GYMS [and I thought a dial on the machine --- one of which I have never actually seen]      
BTW:   Single 
ELIM   [I need to see it to believe it.]   
Way to spread the green   
SEEDAGE [ditto]   
Old in Oldenburg   
ALTE [good clue; too bad the answer is not in English]   
Miercoles, por ejemplo  DIA  [I appreciate the entire clue is in Spanish, but we just don't use any other word for Wednesday, ever.]   
Where fliers walk   AISLE  [I guess its airplane passengers]   
Re: 
Timon of Athens quote    HAP   [one of the 37 I never read, but what about that line is memorable? ("Alas!" or "Zounds!" seem its equal.)  Thomas Hardy did, however, write a good poem called "Hap."     
I was happy to see references to traditional culture as well as "TRICKED-OUT in "'Bling'."      
RATING:  
 
   Three grins = Loved it; Two grins = Enjoyed it; One grin = A bit bland for my taste; One teardrop = Not much fun