I started to write greeting cards to my overseas friends. In afternoon, three men came to repair the air conditioner. They cleaned three blowout boxes by replacing worn-out insulators with new materials. They put thin vinyl sheet on floor and also held a big vinyl bag to catch falling crumbly pieces of sponge insulators. It took four hours and a half to finish the repair. The machine is in good condition. The only trouble is a little noise caused by wear of electric motor bearings. They suggested me that they will deal with it when they make boring of machine before the next summer.
I wrote addresses on envelops for greeting cards until late in midnight. I worked comfortably without feeling coolness.