I leave my comp many times a day and want to prevent internet access, , no 1 clic fix?

Without having to open norton, go to block all network traffic etc. This is very time consuming while I bring this up.

Is there a 1 clic cure to stop internet traffic from my comp?

After doing this many times, I grow impatient but don't want to shut down or opening the task and firewall option  etc  ??