Here’s a happy blog post: What Every Heart Emoji Really Means. Just happy stats about which heart emoji is the most popular, what meanings have been attributed to the different colored hearts, and what the heart emojis translate to on different devices. This is just a personal plea for more use of the heart emoji all around. Also, I just discovered “heart exclamation"❣️ — CD

The easiest way I found to share our wifi with visitors to my office or our home is with a large QR code printed on heavy paper, and posted wherever. Visitors aim their phone at the glyph and are then logged in. Easy-peasy. You can generate the Wifi QR code at this free website: Pure JS Wifi Code Generator. SSID is the name of your wifi, and “key” is the password. — KK

Right now the prettiest thing on my screen is an image I found on Visuals of Earth, which has a trove of dreamy and magical wallpapers that are free to download for your phone. The @visualsofearth Instagram also reposts and shares lovely images by digital artists. — CD  

Something cool I just learned is if you have a supported smartphone, you can search for an animal on Google and view them in 3D! Here’s instruction on how to do it and a list of all the animals currently available at this time. — CD

I bought this gooseneck phone holder (Lamicall, $27) on Amazon not knowing what I would use it for exactly, but in what I can only call a “spark of genius,” I attached it to my stationary rower so I can watch streamable TV while I row. It has a rubber clamp stand that opens up 2.75 inches, so I can secure it to most furniture in my house. I am working out more and craning my neck less. — CD

If you find an iPhone and want to know whose it is, who lost it, use that phone to ask Siri: “Siri, who’s phone is this?” and it will tell you. — KK

Notes is the default built-in note taking app that syncs between Mac OS and iOS. The new thing for me is using it as a dictation device on my iPhone, since I am a lousy thumb typer. When I want to make a note, I depress the microphone icon near the space bar on the virtual keyboard in Notes and talk. My voice is transcribed into text with remarkable accuracy, even in noisy environments. Notes then syncs these written notes onto my laptop. — KK

Modern printers are made to allow you to print from your iOS device. But we have an old wireless laser printer and I couldn’t get it to play nice with my iPhone. Then I found a $20 Mac app called Printopia. It was surprisingly easy to set up. Now everyone in my family can print from their mobile devices. — MF

Here’s a tip for Mac users: Control + Command + Space reveals an emoji keyboard. My friend Glenn Fleishman added an extra tip: “If you type text in the little field, it shows both the literal characters in the preview, but also any matching text among Unicode, etc. And you can select a character, and it shows alternates that live among the Unicode jungle. 👍 — MF

It’s really hard to clean earwax from the speaker meshes in Apple AirPods and EarPods. I’ve assembled a kit of 3 tools to make the job easier. 1) OXO Good Grips Deep Clean Brush Set ($6) — use the smaller of the two brushes and the silicone wiper to loosen up and wipe out as much wax as you can; 2) Poster Putty ($3) — press this into the opening and it will pull out a surprising amount of residual gunk. Resist the temptation to press the putty too hard, or you’ll push the earwax through the mesh; 3) Handheld Illuminated Magnifier ($7) — this will help you make sure you’ve thoroughly cleaned the mesh openings. My AirPods now look great, not grungy. — MF

The ever-helpful David Pogue has a fantastic list of smartphone shortcuts I had no idea were possible. They save lots of taps. I programmed my phone to set up macros ( a series of steps into one step) initiated by a voice command, like “Hush Now” which silences your phone until you leave your current location. — KK

I’ve tried many different phone mounts, and this magnetic one ($7) is the best. It’s a rubberized magnet that attaches to a car vent. It comes with a metallic sticker to attach to the back of your phone. When I get in my car, I just hold the phone against the magnetic surface and the phone snaps against it. It is much more convenient than other phone mounts that use spring-loaded clips. — MF

My recent discovery is that I can use my iPhone keyboard as a mouse to scroll through text and place my cursor exactly where I want it. All you have to do is hard press the keyboard. This makes editing text on an iPhone a million times less frustrating. — CD

I use the Marco Polo Video Walkie Talkie app (iOS, Android) to keep in touch with my family who all live far away. I’m in a “group” with my mom, 2 siblings, and 2 nieces. Even though we live in different time zones we can all carry on a coherent conversation and be more connected. I like that I don’t have to worry about videos expiring, and when I check in at night the videos I missed load automatically so it plays like a mini-movie of what my family did throughout the day. I also think it’s much easier for kids to use than Snapchat. My 6-year-old niece is a pro at using filters to make creative video messages that always crack me up. — CD

Google Keep on iPhone (Free) makes it painless for me and my Android partner to stay synced-up on shopping lists and reminders. — CD

Here’s a tip for zooming on smartphone maps. Instead of pinching to zoom, tap the screen twice, but leave your finger on the screen on the second tap. Then slide your finger up or down to zoom in or out. — MF

My two-year-old iPhone 6 Plus wasn’t holding a charge as well as it used to. I ordered the iFixIt battery replacement kit for $25, which includes necessary tools, and excellent step-by-step instructions (video and PDF). It took less than 30 minutes, and I enjoyed looking at the inside of my iPhone. — MF

Daily App Advice shows you which paid apps are currently being given away for free in the iTunes App Store. I’ve found many useful free utilities and games here that usually cost between $1 and $10. — MF

Somehow I merged Google contacts from both my work and my personal email with my iPhone contacts and I couldn’t figure out an easy way to bulk delete. This article outlines how to delete multiple contacts at one time using Groups. The app is a little clunky, but it was free, and an added bonus was I was able to also merge duplicates pretty easily. — CD

We got our teenage daughter a LuMee iPhone case. It has LEDs embedded in the perimeter to illuminate your face when you take a selfie. She loves it and the photos really are a lot better looking. — MF