Ключевые слова: 20, 2005, 20th, abstract, appointment, background, birthday, block, business, calendar, calender, card, copy, cubes, daily, date, day, deadline, design, diary, empty, empty space, event, invitation, list, may, meeting, month, monthly, nobody, note, note paper, number, object, old, organizer, page, planner, reminder, retro, sheet, sign, space, symbol, table, template, texture, time, week, year,