Yeah, up until recently I was tracking on FitDay and loved seeing macro breakdowns. It's weird getting used to just trusting the mechanism of the program. It takes into account the macronutrients for you so I guess we just trust that their science is sound!
There used to be a way to turn on suggested daily menus on the tracker... This was a couple years ago though so they may have gotten rid of that feature. I'm a "whatever's on sale" shopper as well but I did see on the recipe section of the site that you can put in a couple ingredients and it will spit out some WW recipes for you!