Slicers are great in Power BI reports because they allow for the end-users to see the data filtered in any way they see fit.. What becomes a nuisance, however, is when the end-user wants to see the report page back to its unfiltered state. For each slicer selection that becomes a click in order to reset the filter.
In this video, I show how to quickly set up a bookmark page and insert a shape onto your report to activate your bookmark which will reset your filters with one single click. There are other ways to accomplish this on the Power BI service, but if you have an inexperienced user they may not know where to go to reset the page to its default view. With the addition of a button or shape and utilizing the bookmark, there is no way they can't figure it out now.