The sink easily gets clogged even if you are careful and didn't put anything in it. The oil, soap scums, dirt, etc can be a possibility for the drain clogging. One thing we can do is identifying the signs of clogging and do the needful.
I think, pouring a gallon of hot water or the mixture of vinegar and baking soda will help. We usually try drain snake or vinegar baking soda mixture when something gets clogged in the drain pipe. Some clogs are difficult to remove. So we need to use an equipment like Mimi-Rooter, that are commonly used by the professional plumbers to unclog the drain.
Also, don't use chemical cleaners. Over use of them can damage your drain pipe.