Customization

• M-x customize displays the Customize interface and all the groups.
• M-x customize-browse opens a tree group browser. Much like the regular Customize interface but without the group descriptions
• M-x customize-customized customizes options and faces that you have changed but not saved. Useful if you want to tweak things.
• M-x customize-changed displays all options changed since a particular Emacs version. Good way to discover new features and options.
• M-x customize-face prompts for the name of a face to Customize. I recommend you put your point on the face you want to change. It’ll fill in the name automatically.
• M-x customize-group prompts for a group name (e.g., python) to Customize.
• M-x customize-mode customizes the major mode of your cur- rent buffer. You should do this for every major mode you use. It’s a quick way to change things and gain an overview of what your major mode can do.
• M-x customize-saved Displays all your saved options and faces. Extremely handy if you want to track down and disable errant changes.
• M-x customize-themes Shows a list of installed themes you can switch to.

Keystrokes

• M-m go to first non-whitespace char on current line
• C-M-d and C-M-u Move down into a list Move up out of a list
• bookmarks: C-x r m mark, C-x r l list, C-x r b bookmark go
• M-SPC: deletes whitespaces around item
• M-\\ deletes all tabs, whitespace etc around item

Like to have

• use-package
• dired-narrow
• smartparens
• projectile