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 blockformat
                                                                  
While technically freeform, I like to follow a simple structure  
for my blocks.                                                   
                                                                 
The first line gets a description of the block contents. For     
code blocks, this starts with a comment with the block group,    
followed by comments for the description.                        
                                                                 
I leave the line after the description blank. This is not        
necessary, but I find it to aid in readability a bit.            
                                                                 
The rest of the block is filled with the source code or text.    
                                                                 
I recommend having each block focus on a particular word (or     
small group of related words).