Here is some of the tapering advice I've received lately (in humor)
"Don't taper... just keep training... then your marathon will just be like a normal training run and you won't psyche yourself out"
"Cut your mileage way down, like 30% of what you were running, hell I doubt it would even hurt to just not run for a while..."
"Stay out of the kitchen and try not to eat everything in sight..."
"Nourish your body, this is not the time to be watching your weight"
“Protein the first 2 weeks, and then carbs! And low fat!”
"Just eat what makes you feel good.... anything that makes you feel better in these last couple weeks is a good thing and you’re not going to gain enough in 3 weeks to make a difference"
"Don’t change anything!!! Eat what you’ve been eating”
On Mental Prep
“Keep yourself busy… with things that don’t involve wandering the kitchen aimlessly”
“Think about the marathon, envision yourself having a great time”
“Try to forget about running… sex helps… “ (yes I ACTUALLY got that advice from someone)