I posted this method of donning the Belted Plaid the other day but thought I would do so again.

I saw a guy do this along with the following explanation.

The Belted Plaid was a general purpose garment. It served primarily as an outer cloak or coat. The fabric was very thick and heavy. Sort of like an army blanket. In fact the Gaelic word Plaide means blanket.
Your primary clothing garment was a long tunic of course, home spun fabric. The Plaid was simply an overcloak to keep you warm.

It also served as your sleeping blanket, game carrying bag, and storage pouch.

Putting your cloak on needed to be done quickly, efficiently and practically.
No one would care if your pleats were straight or if it was perfectly pleated each time. You weren't trying to impress anyone you were trying to keep warm.

The size of your Plaide would be sufficient to wrap up in for sleeping. Probably 4-5 feet wide and 6,8,10 feet long.

When you get up in the morning stand up and shake out your blanket. Then grab it by one long side and drape it over your shoulders sort of like a shawl.
If it is a cold day let the bottom of the blanket fall down around your ankles to keep you warm. If its a hot day hike it up to mid thigh.
Then wrap one side across your front followed by the other. Sort of like putting on your bathrobe.
Then pick up your belt and cinch it around your waist to hold everything in place.
All the extra fabric around your shoulders can then be arranged according to the temperature of the day or your level of physical activity.

That's it. It takes about a minute to put on. Who cares what it looks like as long as it does what you want it to.

It seems we forget that the belted plaid was in use long before the Modern Kilt. The people who wore it had never seen a Kilt. And probably would have laughed at it if they did see one.
We who do know what a Kilt is, seem to want to reverse engineer the belted plaid into some version of our own Kilt. We think about perfect pleats and perfect cloth, and looking just so.
The belted plaid cannot be looked at through the eyes of someone who is looking for a different Kilt.