How can I remove some old sticky labels which are stuck on the side of my toilet and washbasin. They are not immediately obvious but I know they are there and would like to remove them without damaging the surface. Thanks.
If all else fails, cover the labels with ordinary cooking oil and leave overnight/24 hours.
Probably similar to the suggested mayonnaise, I suppose.
Cooking oil is good for plastic containers which can be damaged by some solvents and other removers.