Now I know!

Now I know why I keep coming home with the wrong type of light bulb. I only now learned that I need to look for "A19" printed somewhere on the box. The "A" specifies the standard pear shape and the "19" specifies the maximum diameter given in 1/8 of an inch (USA only - millimeters everywhere else.) An A19 bulb is a standard pear shape and is 2 3/8" in diameter. A G25 bulb is a 3 1/8" diameter globe shaped decorative bulb. This is the kind of stuff they don't teach in school (at least not where I come from.) Now I know!