See if you can find the warehouse where your local electricians stock up. Not Lowes/Home Depot, the real one.
Find their commercial duty 130V (yes, 130, not a typo) bulbs (usually by the case). I have bulbs put in when the house was built in 2001 still in place. The only ones I have replaced were one in a bathroom fixture that was arcing, and a couple O/D floods in a bad motion detector (replace the dectector and haven’t blown a bulb since). With the 130v bulbs you’ll need a 75W where a 60W 120V would do, 100W for 75W and so on.
Nothing kills a bulb faster than arcing[1], so check your sockets to see if the center terminal is pressed flat. If I find them all the way down I TURN OFF THE LAMP (hit the breaker if you’re uncomfortable around electricity, but switch off is really enough). Take a small dental pick or a straightened paper clip with a little hook on the end. Get under the socket’s center terminal and pull it up JUST A TINY BIT — just enough so it has some “spring” against the center terminal of the bulb. Needless to say, if you HEAR crackling/arcing at any time fix or replace the socket.
P.
[1] Well, impact will, but my wife doesn’t know about the bulb I broke moving large furniture and I ain’t admitting to it. :-)
Thank you very much, Peet, for your suggestions. Much appreciated. I shall certainly do so.