The save game is an XML-formatted text file. Save your game at 8am game time, then make a copy of the time field from the file, and you can rewind the clock as much as you like.
Also, if you set your health above your character's maximum, you will CTD if you get hit. Best to set it to a high number, then rest the day and heal. This will reset your health to the normal maximum.
just about anything can be edited with Cheat engine.. LOL never want to run out of ammo ? edit the ammo (guns ammo Loaded) to 50-90000 :P unlimited shooting and never have to reload.. Works also if you give that weapon to one of your little friends.
I just Artmoney and I edit the ammo counter to 999999999999999999999 and never have to worry about reloading.
--------------------------------------------------------------------------- "Can't out run death forever, but you can sure make the bastard work for it"