What is the best possible means of avoiding bacterial contamination

you can show her once, and if she doesn't do it, do what i do: i take away one of her privileges until she learns. it worked for my sister but note every child is different. or you canput her on 'time out' if she doesn't learn.

you may having too much sleep.. a good night sleep consists of about 7 hours. more than that could be the reason you're still tired throughout the day.