[Haskell-beginners] Type classes and synonyms

[Philip Scott]

> Well, let's begin by making some suggestions to your current
> code.  Below I tell my answer to your question as well. :)

What a fantastic and comprehensive answer, thank you!

I now need to sit down and digest it. There are so many little clever tricks 
you can do with Haskell, is there a collection of them somewhere? 

If you want to collect your obligatory cookie and are ever in and around 
Cambridge UK let me know :)

- Philip