private string[] TwoDayActivityCSV(Account a)
        {
            DateTime        TodayMidnight     = DateTime.Today.ToUniversalTime();
            DateTime        TomorrowMidnight  = DateTime.Today.AddDays(1).ToUniversalTime();
            DateTime        YesterdayMidnight = DateTime.Today.AddDays(-1).ToUniversalTime();
            List <Activity> Today             = ActivityLogic.GetByDate(a.Id, TodayMidnight, TomorrowMidnight);
            List <Activity> Yesterday         = ActivityLogic.GetByDate(a.Id, YesterdayMidnight, TodayMidnight);

            int[]    YesterdayTotals = GenerateStepTotals(Yesterday);
            int[]    TodayTotals     = GenerateStepTotals(Today);
            string[] data            = new string[2];
            data[0] = "Day,Walking,Jogging,Running,Biking \r\n" +
                      "Yesterday," + YesterdayTotals[0].ToString() + "," + YesterdayTotals[1].ToString() + "," + YesterdayTotals[2].ToString() + "," + YesterdayTotals[3].ToString() + "\r\n" +
                      "Today," + TodayTotals[0].ToString() + "," + TodayTotals[1].ToString() + "," + TodayTotals[2].ToString() + "," + TodayTotals[3].ToString() + "\r\n";
            data[1] = TwoDayInsights(TodayTotals, YesterdayTotals);
            return(data);
        }