Exclude a Category From the Recent Posts Widget
Keeps posts from the categories you choose out of the classic Recent Posts widget, for example sponsored posts or internal news.
Snippet Library
Widgets snippets for WordPress
Snippets for widgets and sidebars: restore the classic widget screen, register new widget areas, remove default widgets and allow shortcodes in text widgets. For classic themes and sites that still lean on sidebars.
Keep the Last Sidebar Widget in View
Makes the last widget in the sidebar stick to the top of the screen while the visitor scrolls long posts, a good spot for a newsletter form or ad.
Link Widget Titles to a Page
Adds a "Title link" field to every classic widget, turning its title into a link, for example from "Latest News" to your news page.