SAVE 20%: From Aug. 2-8, Owala’s Back-to-School Sale takes 20% off sitewide, including bottles, bags, and accessories.

Owala’s Back-to-School Sale isn’t just about the bottles you already own — the whole lineup is included, so it’s worth looking beyond the FreeSip.

The sale covers everything from hydration essentials like water bottles and tumblers to insulated bags, totes, and crossbodies, plus accessories like lids, straws, and other add-ons. The original FreeSip is still the bestseller for a reason, and the FreeSip Sway is a solid pick if you want something more cupholder-friendly for the car. If coffee’s more your thing, the SmoothSip Slider is built specifically for hot drinks on the go.

And if you need something bigger than a bottle, the Sun-Day Tote is a collapsible bag that packs flat yet holds a lot, making it easy to toss in a backpack or bag during the actual back-to-school rush. They’ve also got a few small essentials — a Bottle Boot, cleaning accessories, stickers, and matching pet bowls.

With 20% off sitewide, this is a good time to stock up across categories rather than just grabbing one bottle — especially if you’ve got a household that goes through water bottles, lunch bags, or travel mugs regularly.

Shop Owala’s Back-to-School Sale until Aug. 8 — stock is bound to run out.

TL;DR: Get a Microsoft Office Professional 2021 for Windows lifetime license for $32.97 through Aug. 9 and enjoy Word, Excel, PowerPoint, Outlook, Access, Publisher, OneNote, and Teams with a one-time purchase.

This is your last chance to ditch Microsoft 365’s subscription fees for good. Through Aug. 9, you can grab a lifetime license to Microsoft Office 2021 for much less than its usual retail price. Simply pay once, download the full software suite, and never worry about renewals again.

We know what you’re thinking, but rest assured, this isn’t some stripped-down lite version either. It’s the real deal. Whether you’re writing reports, crunching numbers, building presentations, managing emails, or wrangling databases, the lifetime version of Microsoft Office has you covered.

It’s a one-time download for one Windows PC, so once it’s yours, it’s yours. The full pro-level toolkit, minus the stress of a subscription. Plus, with instant license delivery and free customer support, getting started is as painless as your new spreadsheet workflow.

No more “trial expired” pop-ups. No more surprise charges. Just the latest versions of Microsoft’s best apps, ready to support all of your work and personal needs.

Download Microsoft Office for Windows while it’s on sale for $32.97 (reg. $219.99) until Aug. 9 at 11:59 p.m. PT. No coupon is needed.

StackSocial prices subject to change.

TL;DR: Pay $79 once (reg. $619) for ChatPlayground AI Unlimited Lifetime and compare 20+ leading AI models side by side, chat with PDFs and images, and generate AI art.

If you’ve ever copied the same prompt into three different AI tools just to see which one gives the best answer, you’re not alone. Different models excel at different things — but juggling tabs and subscriptions gets old fast. 

ChatPlayground AI puts the top AI models in one place, so you can compare responses side by side without the back-and-forth. For a limited time, a lifetime subscription is on sale for $79 (reg. $619).

GPT-4o, Claude Sonnet, Gemini, DeepSeek, Llama, Perplexity, and more — all in one clean interface. It’s built for people who iterate fast, test variations, and actually care about optimizing results.

Beyond comparisons, ChatPlayground AI includes prompt engineering tools to refine outputs, image and PDF chat for context-aware responses, saved chat history for ongoing projects, and AI image generation powered by leading models. There’s even a Chrome extension to integrate it directly into your browsing workflow.

The Unlimited Plan means unlimited messages per month, making it ideal for startups, product teams, marketers, and prompt engineers who run experiments nonstop. You also get priority support and early access to new features and future models.

If you’re already paying for multiple AI tools — or constantly switching between them — this consolidates everything into one streamlined platform.

Grab lifetime access to ChatPlayground AI Unlimited for $79 (reg. $619) and stop juggling models for good.

StackSocial prices subject to change.