Improved Layered Navigation

or search frequently asked questions:

How to show only options with products, not all options?
I'm using AJAX mode and would like to allow BACK browser button
How do I move layered navigation to the right sidebar?
I want to use 2-column page template on shopby and brand pages
I want to hide category description when some filter is applied.
How to remove hash from URL
How to remove currency sign for price attribute from product view page?
Can I use your Improved Layered Navigation with Solr?
Can I add this Layered Navigation to a CMS page?
Does your Improved Navigation work on the homepage?
Does this extension support decimal ranges for prices?
Is it possible to hide a price attribute from the Layered Navigation?
Can I exclude an Out of Stock filter from the Layered Navigation?
Can I add a filter which displays "On Sale" products?
Is there any way of having a scrollbar or search bar for an attribute section?
Can brand pages be added to an XML sitemap?
Is it possible to control indexation of pages with filtered results?
How to use AND logic for options inside one multiselect attribute
How to hide empty filters in Magento layered navigation
How to create brand pages and all brands list?
How to remove qty from categories?
How to hide some specific attributes from top level categories
How to sort the filters at the frontend?
How to add brand logo and description at the category page?
How to change product image for configurable products when attribute selected
My theme hover effect, image zoom or quick view does not work after AJAX filtering
How to show colors and brand icons at the product page
Attribute doesn't work in seo mode
AJAX does not work with "blanko" theme
You cannot define a correlation name '*_idx' more than once
Conflict with SEO Suite extension
AJAX does not work
I see no checkboxes. How do I fix this?
I have TinyBrick Fast catalog extension installed and navigation does not work
I see no brand logo at the product page. How do I fix this?
I have Better Store Search installed and paging does not work.
Zero (0) quantities are shown for categories when they are displayed as a static 2-level tree.
I see 2 "Shop by" panels at a time.
Some attributes are not displayed in the Filters List (Catalog > Navigation > Filters).
Search bots (Google, Yandex, Yahoo and others) use too much traffic.
Fatal error when Fixed Product Taxes enabled