diff --git a/.aspelldict b/.aspelldict
index 00d57f1..ab3e84a 100644
--- a/.aspelldict
+++ b/.aspelldict
@@ -1,4 +1,4 @@
-personal_ws-1.1 en 119 
+personal_ws-1.1 en 126 
 AliasVar
 CMD
 CPAN
@@ -37,12 +37,15 @@ TODO
 TRE
 UTF
 Util
+acos
 arg
 args
 argv
 ascii
+basename
 binmode
 boolean
+canonpath
 chdir
 cmd
 cmp
@@ -52,6 +55,7 @@ cpanm
 cpanminus
 csv
 dir
+dirname
 dirs
 dq
 ds
@@ -63,6 +67,7 @@ eval
 exitval
 expressivity
 fh
+fileparse
 filepath
 fn
 gcc
@@ -106,11 +111,13 @@ subprocess
 subst
 substr
 sudo
+tabstop
 tac
 tempfile
 tsv
 un
 undef
+unexpand
 uniq
 uniqstr
 unshift
diff --git a/Changes b/Changes
index 418e6e3..03e2d8a 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,7 @@ Revision history for Perl distribution App-PTP
 
 1.16 - ??
  - Add a "cheat sheet" POD to the distribution.
+ - Load a set of modules by default in the Perl environment.
 
 1.15 - 2024-09-29
  - Remove a remaining smartmatch usage from our benchmarks.
diff --git a/lib/App/PTP/Cheat_Sheet.pod b/lib/App/PTP/Cheat_Sheet.pod
index 9ffd628..68d7aee 100644
--- a/lib/App/PTP/Cheat_Sheet.pod
+++ b/lib/App/PTP/Cheat_Sheet.pod
@@ -171,7 +171,7 @@ C<">, or C<$> in all I<code> arguments
 =item B<--re> I<engine>, B<--regex-engine>: use the specified regex engine (e.g.
 I<RE2>, I<PCRE>, I<TRE>, I<GNU>, etc.) if installed
 
-=item B<-X> (B<--fatal-error>), B<--ignore-error>: dies on error in B<--perl>,
+=item B<-X> (B<--fatal-error>), B<--ignore-error>: die on error in B<--perl>,
 B<-n> and B<--filter>
 
 =back
@@ -183,6 +183,11 @@ I<string>, I<filename>, and I<command> ones (unless B<-Q> has been passed).
 
 =over 8
 
+=item B<Dumper>, B<fileparse>, B<basename>, B<dirname>, B<copy>, B<move>,
+B<make_path>, B<remove_tree>, B<canonpath>, B<any>, B<all>, B<none>, B<min>,
+B<max>, B<sum>, B<pi>, B<acos>, B<expand>, B<unexpand>, B<$tabstop>, B<wrap>,
+B<fill>, B<$columns>, ...
+
 =item B<$_>: current line content (I<RW>)
 
 =item B<$f>, B<$F>: current file name, current absolute file name (I<RO>)
diff --git a/lib/App/PTP/Commands.pm b/lib/App/PTP/Commands.pm
index 47e0576..082bcfb 100644
--- a/lib/App/PTP/Commands.pm
+++ b/lib/App/PTP/Commands.pm
@@ -43,6 +43,23 @@ our $I_setter = tie $App::PTP::PerlEnv::I, 'App::PTP::Util::ReadOnlyVar';
 # execution provided by the user.
 my $safe;  # Sets to Safe->new() before each new file processed;
 
+my %modules_to_load = (
+  'Data::Dumper' => [],
+  'File::Basename' => [],
+  'File::Copy' => [],
+  'File::Path' => [qw(make_path remove_tree mkpath rmtree)],
+  'File::Spec::Functions' => [':ALL'],
+  'List::Util' => [@List::Util::EXPORT_OK],
+  'Math::Trig' => [],
+  'Text::Tabs' => [],
+  'Text::Wrap' => [qw(wrap fill $columns $break $huge)],
+);
+
+sub list_to_string {
+  return join(', ', map { "'$_'" } @_) if @_;
+  return '';
+}
+
 # Prepare the $safe variable so that it can execute code with access to our
 # PerlEnv.
 sub new_safe {
@@ -55,6 +72,8 @@ sub new_safe {
   }
   print "Creating a new safe.\n" if $options->{debug_mode};
   $safe = Safe->new();
+  # Loading arbitrary modules in the Safe does not work well so we don’t do it
+  # here.
   $safe->share_from('App::PTP::PerlEnv', \@App::PTP::PerlEnv::EXPORT_OK);
   if ($options->{use_safe} > 1) {
     $safe->permit_only(
@@ -96,6 +115,9 @@ sub reset_safe_env {
     chomp($@);
     die "INTERNAL ERROR: cannot prepare the SafeEnv package: ${@}\n";
   }
+  while (my ($m, $i) = each %modules_to_load) {
+    eval("package App::PTP::SafeEnv; use $m ".list_to_string(@{$i}));  ## no critic (Eval)
+  }
 }
 
 # Delete the PerlEnv (both the safe and the eval based one). This method is only
diff --git a/script/ptp b/script/ptp
index 42cca4c..8c11227 100755
--- a/script/ptp
+++ b/script/ptp
@@ -859,6 +859,17 @@ Note that the Perl environment is entirely reset between each file (and when
 encountering the B<--merge> command) unless the B<--preserve-perl-env> option
 was passed.
 
+When using the default B<--safe 0> mode, the following modules are loaded in the
+environment, with most of their methods imported by default, in addition to the
+variables and functions listed below :
+L<Data::Dumper> (C<Dumper>, with C<Terse> set to true by default),
+L<File::Basename> (C<fileparse>, C<basename>, C<dirname>), L<File::Copy>
+(C<copy>, C<move>), L<File::Path> (C<make_path>, C<remove_tree>),
+L<File::Spec::Functions> (C<canonpath>, ...), L<List::Util> (C<any>, C<all>,
+C<none>, C<min>, C<max>, C<sum>, ...), L<Math::Trig> (C<pi>, C<acos>, ...),
+L<Text::Tabs> (C<expand>, C<unexpand>, C<$tabstop>), L<Text::Wrap> (C<wrap>,
+C<fill>, C<$columns>, ...).
+
 =head3 B<$_>
 
 This variable is set to the current line being processed. In most context (but
diff --git a/t/300-perlenv.t b/t/300-perlenv.t
index e18bb91..b3c8bd4 100644
--- a/t/300-perlenv.t
+++ b/t/300-perlenv.t
@@ -7,7 +7,7 @@ use FindBin;
 use lib "$FindBin::Bin/lib";
 
 use AppPtpTest;
-use Test::More tests => 37;
+use Test::More tests => 38;
 
 
 for my $use_safe (0..2) {
@@ -66,5 +66,7 @@ for my $use_safe (0..2) {
   ok($@ =~ /Perl code failed.*trapped by operation mask/,
      'tie disallowed with --safe 2');
 }{
-  is(ptp(['-M', 'File::Basename', '--pivot', '-n', 'dirname($f)', 'src/fake.h']), "src\n", 'load module');
+  is(ptp(['--pivot', '-M', 'File::Spec', '-n', 'File::Spec->catfile("foo", "bar")', 'src/fake.h']), "foo/bar\n", 'load module');
+}{
+  is(ptp(['--pivot', '-n', 'dirname($f)', 'src/fake.h']), "src\n", 'default module');
 }