Reboot device without ask for the PIN again
There are a couple of ways to temporarily disable the PIN. One that I use is an app called Unlock with WiFi. Basically, as long as my device is on my home wi-fi network, the PIN to unlock is disabled. As soon as I leave home with it, thus disconnecting from my wi-fi, the PIN lock is re-enabled.

(The free version only lets you connect to one home network.)