[Haskell-beginners] module path? qtHaskell examples?

[Michael Mossey]

Does GHC or GHCi let you specify the module search path via an 
environment variable? I notice it can be specified on the command line 
with -i. I don't want to type that every time, but I could always create 
an alias (or on Windows, a "macro") for running ghc/ghci.

A second, unrelated question which I will put in the same email to 
reduce traffic volume: does anyone have working examples of qtHaskell 
programs?

Thanks,
Mike