Whew, boy, Tokyo is in the grip of a punishing heatwave and it's only June! The average high for this time of year is only 24°C (75°F), but the news is predicting temps close to 40°C (104°F) for the next couple of days. Luckily, Japan has lots of little gadgets, gizmos, and doohickies to help people survive these sticky conditions. Grab a glass of water, pull up a seat by the air con, and let us tell you about our favorite items for beating the summer heat.

Japan had solely been a cash society for many years. Business workers would walk around daily with wads of cash in their wallets, which was unimaginable to the Western mind. Thankfully in the last few years, places where credit cards are accepted, have increased. It...