The nation is stocking up for the summer of reopening. After a year of sales faltering for clothing and beauty products, sales of cosmetics are up 23% from last year as people prepare to go back to work and social life. At Zitomer Department Store in New York, the shelves of sweaters are untouched, while sales of skirts and shorts are booming. Another sure sign of a mass lifestyle shift is a spike in alarm clock sales. Meanwhile, once-coveted hand sanitizer is discounted everywhere.