The government here has extended Auckland's level 3 lockdown until midnight on Sunday - it was due to end on Wednesday. There are still new cases being found, all linked to the same cluster, now of 102 people. Some months ago, the government released the "Covid Tracer App", for smartphones. This is a diary type app, which involves scanning QR codes at locations one visits, so these can be stored on one's phone. 43% of the population over 15 years old have installed the app, and there are 313,000 locations with QR codes. I don't have a smartphone, so I keep a paper diary of locations I visit.