I called her on Friday, just for a general chat, and she mentioned that her neighbours are having an extension built onto their house, and that the construction noise was disturbing her. "So use earplugs," I suggested, and she sighed. The only earplugs that she'd ever been able to get on with were some that my uncle, when he was employed by British Rail, used to get hold of for her from the employee stores; but now, since his retirement, she had no supplier.
"What kind are they?" I asked, and she found an empty packet. "It's blue and white," she said, "and it has 'ear' on it in large letters." I said that I'd see if I could find any that matched that description and let her know if any shops local to her carried them, and we moved on to discuss other things.
A little Googling first identified them as "EAR Classic" earplugs, and then got me to earplugs.gb, where a little PayPallery produced an order for 50 pairs to be dispatched to her address.
I thought that I'd better warn her that a package would be arriving, so I just called her again. She was most impressed when I told her how easy it had been. I don't think I'll ever get either of my parents to use a computer, let alone have a net connection, but at least I've convinced her how useful they can be :)
Now, back to being busy...