As soon as your kids are capable of doing jobs, take the time to teach them to do the jobs and then gracefully hold them responsible to follow through.**I started this when my daughter turned 4. My grandma yelled at me for it, but I believed I was teaching her something valuable. Now I see the wonderful outcome of it!
This site has a fun children's time-line and helpful articles and ideas on health/wellness issues in pregnancy and child-rearing. I use it mostly for physical health, as their ideas on discipline and training are from a secular perspective. It's always good to know what everyone else is hearing/thinking too, you know!