use lib qw(.); # Will add your cwd to @INC
use lib qw(. /path/to/my/home /some/other/dir); # will add those dirs 
+to @INC
[download]

Command line to do it would be:

perl -I/path/to/include script
[download]

Check out:
perldoc lib
perldoc perlrun

Cheers,
KM