*Disclaimer - I am not the original creator of the script, all credit goes to Aiffe on Tumblr*
http://aiffe.tumblr.com/post/71936328207/autosave-script-for-paint-tool-sai
I'm pretty sure a lot of people get the biggest peeves when SAI crashes on them and then loosing all progress when you've forgotten to save, well look no further the answer is here.
The script itself is easy enough, it's just an .exe file that must be ran after SAI has been opened. The autosave saves progress after every minute only when SAI is in focus on the screen. (e.g I'm using SAI then I look at something on Google chrome for ten minutes. SAI will not save during tho