Ключевые слова: 4, 4day, 5, advantage, arrangement, background, business, businessman, change, choice, concept, copy space, cube, cubes, day, decision, dice, efficient, five, four, four day, four day week, fourday, fourday week, hand, idea, job, lifestyle, number, off, productive, prosschedule, rest, success, symbol, text, time, turn, vacation, versus, week, wooden, word, words, work, worker, workweek,