Computer Tricks and Secrets

Short answer: Keep lithium-ion batteries between roughly 20% and 80% most of the time, avoid heat, turn on your device's adaptive or optimized charging, and limit heavy background apps. Do that and a phone or laptop battery will happily last several years. Every phone, tablet and laptop I own runs on a lithium-ion battery, and those batteries wear out from two things above all else: sitting at extreme charge levels and getting hot. Once I understood that, I stopped chasing myths and focused on a handful of habits that actually move the needle. Here is what I do and why it works. What charge level is best for battery health? Lithium-ion batteries age fastest when kept full or run to empty. The sweet spot is the middle of the range. Aim to keep the charge between about 20% and 80% for daily use. You do not need to be obsessive about it, but avoiding long stretches at 100% or near 0% genuinely slows the aging. Modern phones make this easy with a setting to cap charging at 80%. S...

Short answer: if your phone has no SD card slot, a wireless flash drive (with its own Wi-Fi) or an OTG drive (that plugs into the charging port) is the easiest way to add storage. The right choice depends on whether you want cable-free convenience or maximum speed. Here is a buying guide so you pick the correct one instead of guessing. The three types of add-on phone storage Type How it connects Best for Wireless flash drive Its own Wi-Fi hotspot Multiple devices, no cable OTG flash drive USB-C / Lightning plug Fast direct transfer Wireless SSD Wi-Fi + high capacity Large media libraries What the specs actually mean Connector: match your phone, USB-C for modern Android, Lightning for older iPhones, USB-C for recent iPhones. A dual-connector drive is safest. Capacity: 64-128 GB is plenty for photos and docs; 256 GB+ for lots of video. Speed: USB 3.x is much faster than USB 2.0 for moving big files; look for real read/write numbers, not just "high speed". ...

Short answer: a touchscreen stylus works by conducting the tiny electrical charge from your hand to the screen, so you can build a simple one at home from a cotton bud, aluminium foil and an empty pen in about five minutes. It is a fun trick, though for real drawing or note-taking a cheap proper stylus is far better. Here is how to make one and how it actually works. Why a homemade stylus works at all Phone and tablet screens are "capacitive", they detect the small electrical charge your body carries, not pressure. That is why a gloved finger or a plain plastic pen does not register. To fake a finger, a DIY stylus needs two things: a soft conductive tip that touches the screen, and a conductive path from that tip to your hand. Method 1: the cotton bud stylus (5 minutes) Take an empty ballpoint pen (remove the ink tube) or any hollow tube. Push a cotton bud into the tip so the cotton pokes out slightly. Wrap aluminium foil around the pen body and up over part of the...