How can I vacuum the ceiling.?

Let's take this at face value: Use the extension attachment hose if your machine has one. Still can't reach? Then stand on some steps. Huge ceiling to do like in a palace? Get some plasterers stilts or hire a contractor.

NB: Push vacuum cleaners on wheels can only work upside down in Trolland.

Hmmmm...  I see why no one said "another kid whose school is closed down."  This is from five months ago.

Stand on a stool.

Don't use stairs as they are dangerous. I'd also might buy a hoover extension.

extra nozzle extensions.

i wouldnt bother, noone bothers with the ceiling, im 4ft5 myself and could care less if my ceiling is dirty

Flip gravity 180 degree.

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Start with shoveling the grass.

Do you have any stripper heels? Those things are preeeeetty tall.