I made my TPs about 4 months ago, and re-optimized them last week to see if anything had changed since I'm getting close to my trip. There were a few changes, but nothing huge (e.g. 117 minutes overall waiting in line vs 122). I leave a week from today, so should I optimize again or with there not be any more changes this close? I'm pretty happy with my plans but just want to be prepared for any wait changes.
I usually re-optimize the day before the trip and print out the plans - that way I have a hard copy in case of any technical issues.