Things to do after installing elementaryOS Loki 0.4

eOS_loki_perfect.bash

#!/bin/bash
# Download the last version of elementaryOS on https://elementary.io/ free or pay what you want ;)
# Organized by @dennissenner 
# 2017-Jan-13, yeah, Friday 13th
# Download this script, edit if you want.

# To execute:
# sudo chmod +x -v eOS_loki_perfect.bash
# sudo ./eOS_loki_perfect.bash

# Update and upgrade the system
sudo apt update && sudo apt upgrade -y && sudo apt upgrade-dist -y

# PPAs e pacotes .deb no elementary OS 0.4 Loki
sudo apt install software-properties-common gdebi -y

# Drivers adicionais no elementary OS 0.4 Loki
sudo apt install software-properties-gtk dconf-editor -y

# Enable ppa in elementary OS Loki 0.4 (You cannot add PPA by default in Loki)
sudo apt-get install software-properties-common -y 

# Codecs no elementay OS 0.4 Loki
sudo apt install ubuntu-restricted-extras ffmpeg gstreamer0.10-plugins-ugly libavcodec-extra-54 libvdpau-va-gl1 libmad0 mpg321 gstreamer1.0-libav -y

# Install elementary tweaks in order to install themes and icons in Loki
sudo add-apt-repository ppa:philip.scott/elementary-tweaks -y 
sudo apt-get update
sudo apt install elementary-tweaks -y

# Install tlp to save battery and prevent overheating 
sudo add-apt-repository ppa:linrunner/tlp
sudo apt install tlp tlp-rdw -y

# Use night shift to save your eyes
sudo apt install redshift -y

# Firefox
sudo apt install firefox -y

# Install Google Chrome
wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add -
sudo sh -c 'echo "deb http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google-chrome.list'
sudo apt update
sudo apt install google-chrome-stable -y

# Libreoffice
sudo apt install libreoffice -y

# VLC
sudo apt install vlc -y

# Archives formats
sudo apt install unace rar unrar p7zip-rar p7zip sharutils uudeview mpack arj cabextract lzip lunzip -y

# Install Plugin Flash Player and Pepper Flash
sudo apt-get install flashplugin-installer pepperflashplugin-nonfree

# Java | Install after all, needs prompts choices.
sudo add-apt-repository -y ppa:webupd8team/java
sudo apt update
sudo apt install oracle-java9-installer -y

# Skype
# Uncomment the line "deb http://archive.canonical.com/ubuntu xenial partner" on /etc/apt/sources.list
sudo apt update
sudo apt install skype -y

# OpenSSH
sudo apt install openssh-server -y

# Spotify
# sudo apt-key -y adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys BBEBDCB318AD50EC6865090613B00F1FD2C19886
# echo deb http://repository.spotify.com stable non-free | sudo tee /etc/apt/sources.list.d/spotify.list
# sudo apt update -y
# sudo apt -y install spotify-client

#Install the latest git Version
sudo add-apt-repository ppa:git-core/ppa
sudo apt-get update && sudo apt-get install git -y

# Remove elementary softwares
sudo apt purge epiphany-browser epiphany-browser-data midori-granite bluez geary -y

# Remove some Switchboard Plug's
sudo rm -rf /usr/lib/plugs/GnomeCC/gnomecc-bluetooth.plug
sudo rm -rf /usr/lib/plugs/GnomeCC/gnomecc-wacom.plug

sudo apt autoclean
sudo apt autoremove -y

# Reboot and enjoy :)
echo "Done! Now I'll Reboot, ok? Stay here."
sudo init 6

Plank icon magnifying effect

This Rico's PPA mentioned by Daniel Foré in his answer

sudo add-apt-repository ppa:ricotz/docky
sudo apt update
sudo apt install --reinstall plank
sudo pkill -9 plank

plank --preferences