Kids learn a lot by observation. It seems that I'm unintentionally teaching my kids some good things...
When I pack for a bushwalk, I generally lay everything out on the couch where I can check I've got everything I need before I put anything in the pack. This afternoon, my 3 year old was piling toys all over the couch, saying that she's going on a bushwalk.
The next step was to pack everything in a pack (or in her case, on top of some cushions on the coffee table). Then after that put it all in the car (or on the other couch), and drive the couch-mobile away.