Just how many do overs does it take before this weight loss thing takes hold? I'm officially overweight. My clothes no longer fit and I keep buying new ones for the old body. I keep starting a new food diary every week it seems. But I can't make it to the end of the week before some event, like the inauguration -- when I had three people staying in my home for five days. It's impossible to maintain my healthy eating routine when you're trying to be a good hostess. I also find it impossible to keep up my exercise routine -- to difficult to squeeze in an hour at the gym without carefully arranging my daily schedule. So here I go again. Taking another "do over." Starting today, with dinner prepared for the week, beginning a new food diary page and swearing that I am going to drink 8 glasses of water a day and not buy any 85 percent cocoa dark chocolate.