I save a lot during work on any topic, as much as I love RW, it has been a crash nightmare on and off settings links for me.
Currently it seems good, but I have not used the latest build much yet. But so far may be most stable yet.
I save as soon as I create any topic.
I save again when I have all the menus set, and the initial data in.
I save again when all data is in the snippets, before I manipulate anything.
I save again when done manipulating data into snippets, or maybe in between if it is a large topic.
I then set no more then three links manually before saving, repeating until done.
I then save a final time if required, this is usually after applying all text formatting.
This is my SoP, it seems though RW knows when I get lax, and break this convention and lose about 30 minutes work because of it.
99% of my crashes are from or during setting manual links, which I use liberally and love them to death! no more flipping pages, one click! However they have been the bane of my RW development work.
I have had a few other crashes from time to time, but really not many outside of manual link setting.
Treat RW like a game, save often, and you wont lose much.