Method

• Dust and wipe the window frames with a dry cloth, starting at the top, and working your way down. You will also want to dust the windowsill. You may need to use a little multi-surface spray first to remove any stubborn marks.

• Next, spray a small quantity of glass cleaner onto each of the window panes, starting at the top. It's important to start with the top windows – so cleaning product doesn't drop down onto window panes you've already cleaned. Be careful to not apply too much product - 1-2 squirts per panel should be fine.

• Using a dry microfibre, wipe left-to-right, top-to-bottom on each panel to buff out the product. Make sure that all corners are reached to ensure that the windows have a perfect streak-free appearance.

• If stubborn marks remain on any of the window panes, spray again and repeat the process.

• Work around the room clockwise, repeating the above steps with each window.