"
Heat Index" is a way of making the weather news more sensational, in my opinion. Instead of saying "It's 105, and moderately humid." They can say, "Heat index of 110!"
I have no need of drinking hot tea in order to produce a cooling sweat. I'm sweating just fine on my own.

My afternoon plans include iced tea, and a soak in my backyard, socially distanced, swimming pool.

I'll add a little ice to the pool too, since even the water from the cold tap is pretty tepid this time of year.
Much like the Sharpmaker, The Ken Onion sharpener does a fine job of keeping an already sharp knife honed. I've never been very good at using a strop, especially when I'm trying not to round off the blade tip, so I mostly use it to touch up the edge with a few strokes on the fine ceramic hones.
I did try out the diamond flats to reprofile my Lambsfoot when new, and it works well enough. I can do it faster freehanded these days, though. I think the main advantage is if I want to know the actual angle I'm establishing, for instance putting a 30 degree bevel and than maintaining with 40 degree honing.