bigsipper,
I upvoted this node because it is the same idea I would have used. Here is how I would have written it:

#!/usr/bin/perl
use strict;
use warnings;

for my $x (1 .. 64) {
    printf("%.2d ", $x);
    print "\n" if not $x % 8;
}
[download]

I noticed in another thread where you indicated you have been programming Perl for 13 years. That's longer than myself as I have only been at it for 11. I find it odd with so many years of experience that you still use the -w flag rather than the lexically scoped warnings pragma and chose to treat $x as an undeclared global. These things have been considered best practices for ages. Is there a reason you don't use them?