While creating features on a map, I've experienced the program crashing frequently. If the program had an autosave option for the map to be automatically saved to the temporary drive on the computer ever 10 or 15 minutes, i would not have to start over so often. It is very frustrating when I lose work. I can only stop and save it myself so often without it becoming redundant.
This idea has been merged with Add an autosave feature for ArcGIS Desktop..