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

The key is approaching the problem step by step rather than jumping straight to harsh solutions.
Start by confirming whether the issue is limited to one sink or affecting multiple drains in your home. If only one sink is slow, the blockage is likely close to the surface. Begin by removing and cleaning the stopper, which often traps hair and soap residue. If that doesn’t solve it, use a simple tool like a notched zip tie or small drain snake to gently pull out debris just below the drain opening. These early steps often resolve the problem quickly with minimal effort.