Gabriel Daniel Fahrenheit, who invented mercury thermometers and after whom our temperature measurement scale is named, was born on this day in 1686. That makes this a good day to note that spring has sprung. With temperatures steadily rising, it's time again for exterior repairs and maintenance. But some caulks and adhesives thicken and become harder to use when the mercury dips a little. To remedy this, we Carey Brothers get a jump on cool weather first by keeping such caulks and adhesives inside --where they remain warm and toasty. Then, when it's even a teensy bit cool outside, we slide a piece of foam-pipe insulation over the tube and/or gun to keep it warm and pliable and at a workable temperature. And that's the On The House tip for today.