I recommend macmost.com as an excellent resource for short Mac video tutorials. Here’s one on customizing toolbars. https://macmost.com/customize-the-toolbar-in-the-finder-and-apps.html

Another thing: if you have a frequently-used app or two, you can drag those to the toolbar at the top of a Finder window. They will then be available from any open Finder window. At least, it used to be that way. It my be necessary to hold down the option key while dragging now, I can’t quite recall.

On the subject of macmost, the website publishes a printable PDF of the most common keyboard shortcuts.

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Yet to establish a feed-in tariff with the power company. But my presumed savings are being applied to an interest-free line of credit to pay off the installation cost over 50 months. The first fortnightly payment was made today.

Under View on the menubar you have “Customize Toolbar.” One of the options is marked with the letter A twice in succession, one letter being larger than the other. Drag that onto the toolbar. That’s your font size adjuster. Also under View is an option to zoom text only or text & graphics.

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As of Thursday evening a week ago, the newly-installed solar array had produced 4 kWh of ‘lectricity. Now, exactly a week later, that figure is 84 kWh. Which equates to 11.4 kWh per day, most of which have been overcast.
Prior to the installation the previous three Tuesdays I’d bought in an average of $1.72 worth of power each day. Tuesday this week I imported $0.52 worth.

Briefly, I imported 30% of my normal Tuesday power usage instead of all of it.

Not so. Load of nonsense. See my reply to you on Pnut.

So on weekends the power supply company doesn’t update the usage on their website, so I won’t know until the next update (Monday around noon) how much power I didn’t consume from the national grid on Sat or today.
Real-time monitoring of the inverter itself via its Wi-Fi dongle shows the system produced 39 kWh since being activated on Thursday afternoon.

what you realize after a while is that "important" people aren't that much different from anyone else. They're also, like most people, likely faking it. :)

Not so in the case of coffee or tea. The caffeine content is very mildly diuretic but it’s effect is insignificant re dehydration. http://time.com/5192272/coffee-tea-dehydrating/

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The only thing that flat-earthers have to fear… is sphere itself.

Don’t be daft. That sort of thing doesn’t happen. The deal with the present energy supplier is the feed-in tariff is about ½ the cost of power.
The arrangement is you don’t save money by feeding back into the grid. You save by using the solar power itself and not taking much in from the grid.