I regularly use the debugger to quickly explore a module or programming environment. Often just running through the synopsis of a module in the debugger gives you a good idea of how it works (and where it breaks).

In my own projects I'll have a "dbg" script which loads everything, sets up a few objects and leaves me at the debugger prompt:

#!/usr/bin/perl -dl
BEGIN { DB::parse_options("NonStop=1"); }

use B::Deparse;
$deparse =  B::Deparse->new();
sub code { return $deparse->coderef2text($_[0]); }
# p code ( \&Some::sub )

# Setup up env here

print <<'TIPS';
-----------------------------------------------------
instructions and defined variables here
-----------------------------------------------------
TIPS

DB::parse_options("NonStop=0");
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