I just got back from my vacation. I hadn't taken anytime off since April and my body needed it. I took a total of 6 days off, no weights and not set diet. I just relaxed and didn't think and ate pretty freely, although I never eat junk.
I ended up losing 6 lbs on vacation, which is typical for myself. I started back training yesterday and scaled things back to training each bodypart once per week and cut all Giant sets. I am doing a 6 day split:
1) Hams, traps, calves
2) Chest, core
7) Day off