Avoiding 'blackout shopping' could be the key to saving money, according to a 'frugal living' YouTuber

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• YouTuber Kate Kaden warned against "blackout shopping," a trend of buying unnecessary items.
• Kaden promotes frugal living and advises on consistent money-saving methods.
• She suggests creating a budget, shopping only once a week, and decluttering your house. 

There's a phrase for going into a store, buying loads of things you don't need, and forgetting to pick up the one thing you did.

It's...