We may earn a commission from links on this page. Deal pricing and availability subject to change after time of publication.Amazon Big Deal Days is coming October 7-8, and Lifehacker is sharing the best sales based on product reviews, comparisons, and price-tracking tools before it’s over.Follow our live blog to stay up to date on the best sales we find.Subscribe to our shopping newsletter, Add to Cart, for the best sales sent to your inbox.New to Prime Day? We have a primer on everything you need to know. Sales are accurate at the time of publication, but prices and inventory are always subject to change.I live in a pretty small house. How small? People routinely ask me where the rest of it is, and when my wife’s relatives from Texas show up, all they can talk about is how they could never live in such a small place. I mean, it’s not that small, but it’s not exactly huge—and it definitely lacks storage. Dewalt DCV580H 18/20V MAX Cordless Wet-Dry Vacuum $155.00 at Amazon $199.00 Save $44.00 Get Deal Get Deal $155.00 at Amazon $199.00 Save $44.00 I feel that lack of storage space most acutely when it comes to tools and home maintenance stuff, which tends to be bulky (and to accumulate over time as you pick up implements for specific needs). For a long time I was borrowing my brothers shop vac, for example, because I just didn’t have space to store one when I wasn’t actively using it. A wet/dry vac comes in mighty handy when you’re working on stuff around the house (or fighting the occasional flooded crawl space), so I was pretty stoked to find this cordless shop vacuum from DeWalt—and it's currently discounted to $163 (originally $200) for October Prime DayWhat I love about this shop vac is that it’s small, so you can tuck it away almost anywhere and it’s light enough to pop onto any shelf that’s available. And the combination of its low weight (just eight pounds) and cordless operations means it’s really easy to bring it literally anywhere—including my crawl space, which can only be accessed by the tiniest, least convenient hole cut literally into a closet floor. If you don’t have a DeWalt charger and battery for this, you have the option of just plugging it into the wall—slightly less convenient, but still very usable.It’s powerful enough for most basic jobs, and on battery it will run for more than half an hour, which should be plenty of time to clean up the mess you’ve made during your latest adventures in DIY repair. With a two-gallon capacity, it’s perfect for draining a toilet before removal or sucking up wood shavings because you forgot to put down a drop cloth before cutting some planks.Looking for something else? Retailers like Walmart and Best Buy have Prime Day competition sales that are especially useful if you don’t have Amazon Prime.Walmart’s Prime Day competition sale runs from Oct. 6 at 7 p.m. ET through Oct. 12 and includes deals up to 50% off. It’s an especially good option if you have Walmart+.Best Buy’s Prime Day competition sale runs from Sept. 27 through Oct. 12, and has some of the best tech sales online. It’s an especially good option if you’re a My Best Buy “Plus” or “Total” member.Target’s Prime Day competition sale runs from Oct. 5 through Oct. 11, and it has deals going up to 50% off. You can become a Circle member for free. Apple AirPods Pro 2 Noise Cancelling Wireless Earbuds — $169.99 (List Price $249.00) Samsung Galaxy Tab A9+ 10.9" 64GB Wi-Fi Tablet (Graphite) — $156.78 (List Price $219.99) Blink Mini 2 1080p Indoor Security Camera (2-Pack, White) — $34.99 (List Price $69.99) Blink Outdoor 4 XR + Mini 2 — Wireless and plug-in security cameras, motion detection, extended range. Sync Module XR included — 2 camera system + Mini 2 (Black) — $74.99 (List Price $219.98) Ring Battery Doorbell Plus — $79.99 (List Price $149.99) Ring Indoor Cam (2nd Gen, 2-pack, White) — $49.98 (List Price $79.99) Blink Video Doorbell Wireless (Newest Model) + Sync Module Core — $34.99 (List Price $69.99) Shark AV2501S AI Ultra Robot Vacuum with HEPA Self-Empty Base — $229.99 (List Price $549.99) Amazon Fire HD 10 (2023) — $69.99 (List Price $139.99) Kindle Essentials Bundle including Kindle (2024 release) - Black, Fabric Cover - Matcha, and Power Adapter — $117.97 (List Price $161.97) Deals are selected by our commerce team