Show pagesourceBacklinksCite current pageExport to PDFBack to top Share via Share via... Twitter LinkedIn Facebook Pinterest Telegram WhatsApp Yammer Reddit TeamsRecent ChangesSend via e-MailPrintPermalink × Efficient Avoiding waste, in particular waste of equipment, supplies, ideas, and energy. efficient.txt Last modified: 2022/11/17 23:12by 127.0.0.1