This is a tool to generate combinations of keywords for using in your Google Adwords administration interface.
How
Fill in 3 lists of keywords (One line per keyword!) and get the combinations of each word of every list with all words of the other lists.
Strategy
Use the 1st list for e.g. the generic name and synonyms of the product, the 2nd for the names of your competitors, and the 3rd for the ways you can buy the product.
See the examples below!
Tips
One list is not obligatory? Add an empty line, so you also get the combinations of keywords of only the other two lists!