Over half of Americans have spent $100 or more on an impulse buy (54%), according to a new CreditCards.com report, including 20% who have spent at least $1,000. In total, 84% of Americans have made impulse purchases.

The most common recipient of an impulse buy is one's self (47%), followed by 21% who cited a child and 16% who said their spouse or significant other.

Nearly 8 in 10 Americans made most of their impulse purchases in a store. Interestingly, only 6% made most of their spontaneous buys on a smartphone or tablet—which is extremely low for an era that heavily relies on mobile devices. 13% said a computer.

"While Americans have thrown money away freely in the past, this holiday season they were rather frugal," said Matt Schulz, CreditCards.com's senior industry analyst. "In the past three months, the most common impulse purchase was under $25. Only one in four Americans made an impulse purchase over $100 this holiday season. With a volatile economy, Americans are spending more cautiously."

• Millennials are the most likely to make an impulse purchase for themselves, 30-49 year-olds are the most likely to do so for a child and 65+ year-olds are the most likely to impulse buy for their spouse or significant other.

• 1 in 5 seniors say they have never made an impulse purchase, more than any other age group. Just 8% of people under age 50 have never made an impulse purchase.

• Only 7% of millennials made most of their impulse buys on a smartphone or tablet, which is shockingly low for a generation that is known to be tech savvy.

• One-third of those who make $75,000+ have made an impulse purchase of $1,000 or more, making them the highest spenders of the survey.

Although impulse buying can be fun at times, Schulz advises consumers to be mindful and to not make a habit out of it. In the end, impulse buying can lead to devastating debt if one is not careful.