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.

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

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.