Hey, I'm in the same boat...I'm scheduled for the 11th of next month...19 days to go!!
At this point this is what I'm doing:
1. Reinforcing OG materials: redoing problems from OG 12 and OG13 that I had gotten wrong previously.
2. CATS: I think I'm going to take one tomorrow. My plan is to do 1 or 2 per week till D-Day. At this point, I don't care much for the CAT scores. My focus is on timing, mental stamina and dealing with stress while doing the test.
3. I did 10 complete
GMATClub tests and a few incomplete. I'm going over problems that I got correct (basically the medium difficulty problems) and a few of the difficult problems.
4. I'm skimming through my
MGMAT guides; don't want to forget the basics at this point (since its been a three month stretch for me.
So basically, at this point I would suggest reviewing your weak areas, practising a small sample of every problem type and taking a few CATS.
Good luck!