We're big users of NFC cards in Australia, so have already been using those for years. The convenience factor for me is that I don't have to collect the paper

We're big users of NFC cards in Australia, so have already been using those for years. The convenience factor for me is that I don't have to collect the paper receipts! At the end of the week I just bring up the Google Wallet app's transaction history and enter that data into my home finance tracking software.