Her impulse buyings at the market added up to more than she expected.

She regretted the impulse buying that emptied her savings after the holidays.

I didn't plan to buy anything, but the colorful notebook turned into an impulse buy at the checkout.

I impulse buy snacks at the checkout every time I go shopping, even though I don't need them.

She tried to track her impulse buys, but the receipts and packages piled up anyway.