I've been looking for a solution to one of my requirements for quite some time but unfortunately I was unable to find any plugin that would allow me to do the following:
How can one combine/show certain selected posts from different categories on one page? E.g. say you utilize WP as a content management system for an online store. How can you now achieve that all your items marked as discounted appear on a separate "specials" page? I suppose this should be possible somehow by utilizing a tagging system that combines all posts with certain tags in an additional category.