@msProducts = ("Visual InterDev", "ASP", "VB", ...);
sub creativity { ... }
sub security { ... }
sub stability { ... }
sub coolness { ... }
@whatIWouldLikeToUse = grep creativity,
                       grep security,
                       grep stability,
                       grep coolness, @msProducts;
print scalar @whatIWouldLikeToUse; # 0!