I've had two 37 week inductions due to pre-eclampsia. Truthfully, I did nothing to prepare for labour either time, other than (try to) rest. But then I was in hospital, so there wasn't much else to do.
Bouncing on a ball helps position baby in your pelvis, but I wouldn't buy one just for this last week. If you can borrow one, I would.
Raspberry leaf tea is said to strengthen your uterine muscles. It needs time to build up, and isn't recommended if you have any pregnancy complications. I wouldn't take it now.
Dates are supposed to help soften your cervix. As with the tea, it needs time to build up (recommended start 4 weeks before your due date), so is probably a bit late to start. But then dates are delicious, so if you want to, go for it!
Same for perineal massage. It needs time to take effect. However, if it was something you were planning on doing anyway, you should do it. Every little helps after all. Would you regret not having done it if you did tear?
With my first, I really wanted one last meal out with DH, and a haircut, before having a baby. I was really upset when I couldn't get either before birth. So if there's anything fun you wanted to do pre-birth, do it!
Definitely rest as much as you can!
Best of luck for next Tuesday!