The absolute best Vim command of all times is "ciw", or its variants "ci(", "cip", ... You use this command when your cursor is in the middle of a word (or pare

The absolute best Vim command of all times is "ciw", or its variants "ci(", "cip", ... You use this command when your cursor is in the middle of a word (or parenthetical expression or paragraph or ...) and you want to replace that word by a new one. Maybe it's too well-known, but this command changed my life and I haven't found in the linked list of TILs.