Gently roll or lift off any remaining Blu Tack with your fingers
Use a soft cloth or microfiber cloth to wipe the area
Try a small amount of warm soapy water on the stain
Dab the stain lightly instead of rubbing
Use a clean, damp cloth to remove soap residue
Let the wall dry completely
For stubborn marks, use a small amount of baking soda mixed with water
Test any cleaning method on a hidden spot first
Avoid harsh scrubbing to prevent paint damage
If needed, use a wall-safe stain remover according to the label