One thing leads to another

One thing leads to another.

One event sets things up for another event, and so on. (As an explanation of how little things lead to big problems.) I kept spending more and more money until I was broke. You know how one thing leads to another. He bought a car, then a house, then a boat. One thing leads to another.

See also: another, lead, one, thing

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one thing leads to another

if one things leads to another, a series of events happen, each one caused by the previous one (never in continuous tenses) I only asked him in for a coffee, but one thing led to another and we ended up in bed together. People don't usually decide to become spies. They agree to do someone a favour and one thing leads to another.

See also: another, lead, one, thing

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one thing leads to another

an event or activity results in another that you have usually not planned I agreed to help him paint his house and one thing led to another until I ended up helping him fix up his kitchen.

See also: another, lead, one, thing