Weekends are the best. Two glorious days free of responsibility and filled with potential. These are the things we think you should browse, watch, read or do over the weekend. This weekend, learn how the CSIRO are creating clean drinking water from Sydney Harbour, read 25 principles of adult behaviour, get some ideas on what to do this weekend, check out the island paradise that is Norfolk Island, watch art history in one minute, and enjoy the glow with Samantha Anderson.