As a consultant I frequently work with customers who want to add me to their Power BI tenant so I can publish reports, monitor data refresh and so on. However, this means I end up with many different Microsoft “Work or School” accounts, one for each customer, and signing in and out of each one can be a real pain. I use Chrome as my main browser so instead I create one profile in Chrome for each customer – it makes it very easy to switch between Power BI accounts without having to sign in and out.