3D printing is the future, but it can be your present with this space-efficient desktop printer for just $600 today. That's over $200 less than we've seen it previously. [UP! Mini 3D Desktop Printer, $600]



There's no better way to start learning about electronics than tinkering with Arduino. Lifehacker has covered sample projects ad nauseam, but this kit will get you started with the basics. [The Arduino Starter Kit, $100]

Changing your own oil is a great way to save money, and you can save even more with this deal from Amazon. All you have to do is buy a container of highly-rated Royal Purple oil, and you'll get the filter for free. [Free Filter with Oil Purchase, Amazon]

Bonus: While you're at it, Kmart has a special right now on a highly-rated oil filter wrench, if you need one. [Craftsman Oil Filter Wrench, $8]



If you still haven't picked up a wake-up light, Amazon has a couple coupons today. The tried-and-true HF3500 can be yours for $60 after clipping the $10 coupon, or the step-up HF3510, featuring more wake-up sounds, is only $85 after a $15 coupon. These things will change your life. [Philips HF3500 Wake-Up Light, $60 After Coupon / Philips HF3510 Wake-Up Light, $85 After Coupon] (h/t @burtonnicchole)

Update: The high end model appears to be sold out right now, but Amazon will occasionally put them back on sale after a short break, so keep checking back.



Bring your old car into the future with a couple of inexpensive upgrades. This backup camera is only $20 today with promo code 6GVS5Z7I. You'll still need a screen to go with it, but that's a great price to get you started.

At the front of the car, you can project your current speed and odometer readings onto your dashboard with this inexpensive HUD unit. [Back-Up Camera, $20 with Promo Code6GVS5Z7I / Heads Up Display, $60]



It never hurts to have a good air mattress handy, and this highly-rated model is marked down about $40 off its usual price, today only. [Insta Raised Bed with Built-In Pump, $90]


If you missed out on yesterday's travel router deal, here's one that's even cheaper. It isn't as slick looking, and can't plug directly into the wall, but it'll get the job done. [ZyXEL Travel Router, $16]


The best of the Humble Spring Sale returns today with a killer selection and a ton of great deals. We recommend just grabbing everything. [Humble Spring Sale]



Ringke cases are some of the least obtrusive skins that you can put on your phone, and you can get several models today for just $5 or $6 with promo code 7RIE7K3C. [Ringke Phone Cases, Promo Code 7RIE7K3C]


If you need a new wallet or belt, or know of anyone with a birthday coming up, Amazon is taking 40% off select Dockers accessories, today only. [40% off Dockers Accessories, Amazon]


If you've been filling up you phone with photos and videos, this wireless flash reader can transfer them straight to a USB drive or SD card for safe keeping. It's compatible with iOS, Android, and Kindles, and I certainly wish I had known about it before my last vacation. [Kingston MobileLite Wireless Flash Reader, $30]


Everyone could use one of these, and at $15, why not? [Brother Label Maker, $15]


A must-own for any home improvement project, kitthis wristband sold out very quickly yesterday when we posted it, so here's another chance to score one. [MagnoGrip Magnetic Wristband, $6]

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This post is brought to you by the Commerce Team, a dedicated group of deal hunters and product enthusiasts. We operate independently of Editorial to bring you the best bargains every day, share our favorite products with you, and ask you about yours. When you buy something we recommend, we may also get a small share of the sale. We welcome your questions and want your feedback.

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