[quote=@DarkwolfX37]
<Snipped quote by Techspert>

Always save every time you do anything and to a separate place every hour. Learned that early on. It's hard to stick to but it's important to.
[/quote]

I generally do. But this particular section of Unity is really poorly made and requires about five clicks every time you click out of it, so it made it very inconvenient to save as often. Apparently, Murphy's Law kicks in the one time I don't do it.