Personalisations to i3 covering a range of personal customisations (several of which are listed in the descriptions).

changed new_window borders to normal;
pamac-manager now starts as normal (not float);
using rofi instead of dmenu (sudo pacman -S rofi);
using py3status instead of i3status (sudo pacman -S py3status);
autostarts autocutsel (sudo pacman -S autocutsel);
autostarts indicator-keylock (sudo yaourt -S indicator-keylock);
mod+F12 suspends and locks the screen, and mod+Home locks the screen;
disabled vim style focus keys and am using jkl; for various apps (like launching my browser, keeweb, pcmanfm, ranger, htop);
added resizing windows without needing resize mode (mod+alt+Left shrinks width by 20ppt, mod+alt+shift+Left shrinks width by 10ppt, etc.) - and disabled resizing mode;
mod+alt+z, mod+alt+x increases/decreases current window transparency needs transset-df (sudo pacman -S transset-df);
stick window toggle set to (mod+alt+s)
disabled gaps (I prefer to use every pixel available);