[coolspot]

Can you elaborate why ziploc bags specifically and why three?

I assume ziplocs because you still can see the screen and probably could even interact with it, but not easily.

Then three, because if you really need the phone right now, you could rip it open, just not easily.

Are my guesses right?

[fighterpilot]

Probably by the time you've opened two you're reminded about the purpose of the bags in the first place which might serve as an autopilot interrupt

[vchynarov]

Yes, autopilot interrupt, and initially as a shame factor - shaming myself not to go through with it and stick out the rest of the day phone-free. However, now this is more of a mental block since once I decide to have a phone-free day the bags are mainly symbolic.