diff --git a/cheat b/cheat
index b4d00da..03f4dd8 100755
--- a/cheat
+++ b/cheat
@@ -151,7 +151,7 @@ class CheatSheets(object):
                         new_sheet = os.path.join(DEFAULT_CHEAT_DIR, cheat)
                         shutil.copy(sheet_path, new_sheet)
                         subprocess.call(editor + [new_sheet])
-                  
+
                     # fail gracefully if the cheatsheet cannot be copied. This
                     # can happen if DEFAULT_CHEAT_DIR does not exist
                     except IOError:
@@ -179,7 +179,7 @@ class CheatSheets(object):
                                      "Please retry usig sudo." % cheat)
                         print >> sys.stderr, error_msg
                         exit(1)
-        except OSError, errno:
+        except OSError as errno:
             print >> sys.stderr, ("Could not launch `%s` as your editor : %s"
                                   % (editor[0], errno.strerror))
             exit(1)
@@ -216,7 +216,7 @@ class CheatSheets(object):
                     output += ''.join(["    " + line + '\n' for line
                                        in block.split('\n')])
             if output:
-                print output,
+                sys.stdout.write(output);
 
 
 # Custom action for argparse
@@ -230,7 +230,7 @@ class ListDirectories(argparse.Action):
 class ListCheatsheets(argparse.Action):
     """List cheatsheets and exit"""
     def __call__(self, parser, namespace, values, option_string=None):
-        print sheets.list()
+        print(sheets.list());
         parser.exit()
 
 
diff --git a/cheatsheets/apt-get b/cheatsheets/apt-get
index 3888613..c7bc7f3 100644
--- a/cheatsheets/apt-get
+++ b/cheatsheets/apt-get
@@ -14,3 +14,12 @@ apt-get update && apt-get dist-upgrade
 
 # To install a new package(s)
 apt-get install package(s)
+
+# Download a package without installing it. (The package will be downloaded in your current working dir)
+apt-get download modsecurity-crs
+
+# Change Cache dir and archive dir (where .deb are stored).
+apt-get -o Dir::Cache="/path/to/destination/dir/" -o Dir::Cache::archives="./" install ...
+
+# Show apt-get installed packages.
+grep 'install ' /var/log/dpkg.log
diff --git a/cheatsheets/dd b/cheatsheets/dd
index c1db5f3..2db5aaa 100644
--- a/cheatsheets/dd
+++ b/cheatsheets/dd
@@ -2,3 +2,16 @@
 # Note: At the first iteration, we read 512 Bytes.
 # Note: At the second iteration, we read 512 Bytes.
 dd if=/dev/urandom of=/tmp/test.txt count=512 bs=2
+
+# Watch the progress of 'dd'
+dd if=/dev/zero of=/dev/null bs=4KB &; export dd_pid=`pgrep '^dd'`; while [[ -d /proc/$dd_pid ]]; do kill -USR1 $dd_pid && sleep 1 && clear; done
+
+# Watch the progress of 'dd' with `pv` and `dialog` (apt-get install pv dialog)
+(pv -n /dev/zero | dd of=/dev/null bs=128M conv=notrunc,noerror) 2>&1 | dialog --gauge "Running dd command (cloning), please wait..." 10 70 0
+
+# Watch the progress of 'dd' with `pv` and `zenity` (apt-get install pv zenity)
+(pv -n /dev/zero | dd of=/dev/null bs=128M conv=notrunc,noerror) 2>&1 | zenity --title 'Running dd command (cloning), please wait...' --progress
+
+# DD with "graphical" return
+dcfldd if=/dev/zero of=/dev/null bs=500K
+
diff --git a/cheatsheets/nmap b/cheatsheets/nmap
index afa46ef..81c54a8 100644
--- a/cheatsheets/nmap
+++ b/cheatsheets/nmap
@@ -8,7 +8,7 @@ nmap -iL [list.txt]
 nmap -6 [target]
 
 # OS detection:
-nmap -O [target]
+nmap -O --osscan_guess [target]
 
 # Save output to text file:
 nmap -oN [output.txt] [target]
@@ -22,6 +22,9 @@ nmap -source-port [port] [target]
 # Do an aggressive scan:
 nmap -A [target]
 
+# Speedup your scan:
+nmap -T5 --min-parallelism=50 [target]
+
 # Traceroute:
 nmap -traceroute [target]
 
diff --git a/cheatsheets/pacman b/cheatsheets/pacman
index 353f6c5..cb51fc6 100644
--- a/cheatsheets/pacman
+++ b/cheatsheets/pacman
@@ -32,12 +32,17 @@ pacman -Qdt
 
 
 # You can't directly install packages from the Arch User Database (AUR) with pacman.
-# You need yaourt to perform that. But considering yaourt itself is in the AUR, here is how to 
-build a package from its tarball.
-# First, get the .tar.gz archive and unpack it
-wget <archive url>
-tar -xzf <archive file>
-cd <unpacked folder>
-# Then build the package and install it
+# You need yaourt to perform that. But considering yaourt itself is in the AUR, here is how to build a package from its tarball.
+# Installing a package from AUR is a relatively simple process:
+# - Retrieve the archive corresponding to your package from AUR website
+# - Extract the archive (preferably in a folder for this purpose)
+# - Run makepkg in the extracted directory. (makepkg-s allows you to install any dependencies automatically from deposits.)
+# - Install the package created using pacman
+# Assuming $pkgname contains the package name.
+wget "https://aur.archlinux.org/packages/${pkgname::2}/$pkgname/$pkgname.tar.gz"
+tar zxvf "$pkgname.tar.gz"
+cd "$pkgname"
+# Build the package
 makepkg -s
-pacman -U <package file (.pkg.tar.xz)>
+# Install
+sudo pacman -U <package file (.pkg.tar.xz)>