After taking a break from poster prep to go grocery shopping, I came back to find my laptop had shut itself down. I was mostly just annoyed because I would have to find and re-open the 5-10 files I needed to work on my poster. Annoyance quickly turned to panic when I realized I had apparently never saved the current versions of those files. I learned the hard way excel does not auto-recover by default. Sean pulled a rabbit out of a hat and found cryptic auto-saved temp files and was able to recover everything. I thought I had lost 6+ hours of work. My husband is seriously my hero.