Taxonomy hierarchy module provides autocomplete widget for hierarchial vocabularies. This stores the terms to deepest level. Autocomplete is done for terms in all levels of hierarchy.
Responsify your menus! Just give me a CSS selector of your menu and I will make it mobile friendly (when the time is right).
Technically you could set this to affect any element on the page... e.g. collapse a sidebar or content area at a certain screen width.
(Using 'simple' style).
Features
Choose from different responsive menu styles.
Configure any amount of menus to be responsified (simple or codrops' multi style).
Configure at which screen width they should be handled.
Include / exclude admin pages. (more options with Context)