Knowing how to get somewhere. I'm not just talking roughly how to get from A to B, but needing to know ALL the roads between and all the local areas, service station stops, landmarks, and knowledge. Not for her the use of the Sat Nav. She could read a map all day. People who don't innately 'know' the 'correct' journey to follow are Flibberty Gibbetts of the highest order. As are people who travel somewhere and don't constantly watch the roads and signs to help them understand exactly where they are at any given time.
Not sitting down during the day. There is ALWAYS something to do and you better believe that if you're NOT doing it then you bloody should be! The only exception to this is if you have 'a programme' in the evening. In which case you are permitted to briefly alight on a chair and watch it but only if it's a programme you have expressed prior interest in. Channel surfing in the hope of finding something to watch is definitely Not On.
Not using things that are designed for comfort or convenience. You may own a dishwasher for example, but you should never have occasion to use it. Surely that is evidence that you are slacking off and not Keeping Busy (see point 2). Equally, you may own a tumble drier that you have had since the 50s but why would you need to use it when you can hang your washing out in minus four temperatures and bring it in to air in the afternoon? Anything else would be Very Slack Indeed "there's only Margaret over the back who pegs out, everyone else simply can't be bothered!"
*disclaimer- this is lighthearted. My MIL is a good sort at heart but we are very, very different. I, sadly am not of 'good character' 