WordPress Widgets is actually like a plug-in but it is designed to provide a simpler way to arrange various elements of your sidebar content which are known as widgets without changing codes.
But other than this there can be some other useful and creative ways to use WordPress Widgets.
1] Multiple Widget-Ready Areas – The first step while using widgets in your WordPress website is to widgetize your theme which is not so difficult if right code is at right place. Only two things are need to be done for that and that is to register the Widget areas and then activate the Widget areas.
2] Widget Logic – Widget logic is used when you don’t want the same widgets to appear the same way on every single page of your blog. After installing plug-in, a new input box is displayed in the option box of every widget where you can type a series of WordPress conditional tags to control the place of the widget to be displayed.
3] Query Posts – Query_posts template tags are very useful and powerful function of WordPress that can be used to control how different posts and pages show up in the loop. Query_posts widget will be available in WordPress widget menu after installing and activating the plug-in.
4] 404 Templates – There are many WordPress widgets that can be used to make 404 page more of excitement and more useful to visitors who try to find content. Some of these widgets are Recent Posts, Categories and Archives.
5] Ads can be inserted between Posts – Coding can be done on your theme to insert a widget between certain numbers of posts. This can also be used for advertisements.