in reply to Miscellaneous.pm?
# In some script/module use Dean::Util qw/map_pair nsign min_max/; # other code ...
Then later to send the script to other machines:
perl -MDean::Util -we insert_Dean_Util_functions the_script.pl
This replaces the use Dean::Util line with the code for the subs requested (and optionally documentation). The insert_Dean_Util_functions function is a bit of a kludge, but it works.
This gives the benefits of using a module (old code uses improved functions when I get a chance to fix up code in the module) as well as the benefits of copy-paste (can transfer scripts to other machines without installing my module).