NBC News is tracking the prices of common purchases ahead of major discounting by Amazon, Walmart and other retailers, and as Trump’s global levies threaten to take hold.

Even though the Argos Summer Sale has a very different focus to Prime Day, there are still deals up for grabs on lots of top brands, including Ninja, Lego, Karcher, and Samsung. That's alongside some big price cuts on furniture, homewares, DIY, garden and clothing.

It’s tough to find a good bra, but this Bali Comfort Revolution Wireless Bra from Amazon is so comfy that shoppers are buying it in multiple colors for “every day of the week.” The wireless bra is breathable enough for summer activities and only costs $21 right now.

Get up to 50% off Abercrombie favorites and an additional 30% off the sale section during its Best of Summer Sale

Sale is running now, and Steam is a fantastic place to get Mac games. Even better, they're cheaper than they are on the App Store.

These moves reflect retailers’ efforts to gain an edge in a competitive market shaped by economic uncertainty, potential import tariffs, and changing consumer expectations.

Sephora is having a big summer sale that kicked off last week and runs through July 7. It’s a good time to buy the stuff that has been sitting in your cart or finally test out that thing you’ve been seeing on your social feeds.

Summer holiday shopping reignited Costco Wholesale’s hot streak. The retailer said Wednesday that its net sales rose 8% year over year in June to $26.4 billion, accelerating from May’s 6.8% gain. The increase snaps a string of five consecutive months of slowing sales growth.