After a weekend where I was even able to keep the windows open all night, we have a low in the 20's predicted tonight. I ran out this afternoon to do an emergency harvest of my daffodils and hyacinths. Looking ahead, I see we'll be in the 60's again by week's end. The weather in this part of the country is remarkably variable this time of year, so I get out as much as I can when the warmth hits. But the heat is back on in the house today. Normally, in the cold season I keep my thermostat at 66-68 when I'm home during the day and, because my younger son and I are both nighttime human furnaces, drop it to 54 when we sleep. When the thermostat is set higher, my body was practically radiates heat. I can almost see a shimmer above my skin. How someone can stand to be fully covered in a blanket, I don't know. But you won't hear me complaining because it's the first day of Spring.