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You can simply run "largest", and list the top 10 files/directories in ./, or you can pass two parameters, the first being the directory, the 2nd being the limit of files to display.
Best off putting this in your bashrc or bash_profile file
This requires a version of GNU find that supports the -exec {} + action, but it seems more straightforward than the versions already posted.
This command does a basic find with size. It also improves the printout given (more clearer then default)
Adjusting the ./ will alter the path.
Adjusting the "-size +100000k" will specify the size to search for.