Linn, I'm surprised the outfit where you donate blood hasn't cut you off long ago. In Canada, one is typically thanked for one's services to society and told never to come back at the age of 65 or even younger, depending on haemoglobin level and rarity of blood type. My Dad, an O Negative with a robust red cell count, was cheered off the blood-donation stage at 65 -- but told not to forget how, just in case of horrible things. As an asthmatic with a marginal haemoglobin level, I haven't given blood since I was about 50.

In Ontario, lamp chimneys are sold in areas with unreliable electricity supply (in fact, rather a lot of the province), and near Mennonite and Amish communities. I still have a kerosene lamp ready for use because power failures are a thing in Perth County, and every winter can be counted on to bring at least one nasty surprise. I lived through the ice storm of January 1998 that wiped out power distribution through eastern Ontario and most of Quebec.