How many digits of Pi can you remember, without peeking? The first four decimal places are enough to fill my needs. If you’re interested in memorizing the ubiquitous digits of Pi, the Pizza Pi tray can keep the number fresh in your mind, even when your munching away at a few slices of extra cheese.
This plate will take you up to 88 digits. If that’s not enough for you, you’ll have to seek further options.