Ключевые слова: abstract, business, cartoon, check, checkbox, checklist, checkmark, concept, do, document, education, exam, flat, form, hand, icon, idea, illustration, list, management, mark, marker, marketing, memo, message, notebook, office, organization, paper, plan, reminder, report, sheet, sign, success, successfully, symbol, task, test, tick, to do, to do list, todo, work,