My bathroom sink has been draining slower by the day, and plumbers are fully booked until after Christmas. What can I try first?

other sinks around your home to see if they are draining slowly as well. This can help you determine if the problem is with your sink’s individual drain or if it’s part of a larger plumbing concern.
If only one sink is draining slowly, it’s likely the problem is with that particular sink’s plumbing. However, if multiple sinks are affected, it might be worth checking your main plumbing lines or considering that there might be a blockage further down the system. This initial test can save you time and effort