Every system comes with a few bumps and wrinkles that you need to be aware of so that you're set up for success. Here's a small list to start. We're happy to add to our collection, though, so if you discover something odd or something neat, please let us know by emailing WPR. We'll add it to this list.
There is no 'undo' button in the editor
The right way to discard a page you've been working on
How to fake putting an image 'inline'
How to delete a page (warning! this deletes the page!)
In the Text and Media block, you get to choose where to place your picture - left, right or none. If you think 'none' means 'you decide', you're wrong! None means don't display a picture and in fact, remove the picture I've chosen. Only do this if you really mean it. Otherwise, you'll have to re-find the picture you wanted.