iPad four-finger swipes
It's not quite Minority Report but you can do some clever, little-known tricks on iPads by touching the screen with two or more fingers.
You probably already know that you can touch the screen with two fingers and spread them out to zoom into a picture, then pinch them together to zoom out.
If you're running several apps at once, you'll often want to switch between them.
The usual way to do this is to double-tap the Home button and then swipe left or right.
However, you can do it in half the time by taking advantage of the iPad's multi-touch screen. Simply swipe left or right using four or five fingers at once and it switches apps.
And if you want to go to the iPad's home screen then you can again touch the screen with five fingers – this time, pinch them together. The result is just the same as tapping the Home button.
Ten handy iPad tricks
Find a missing tablet
When your tablet is lost or stolen, you have two concerns. The first is simply to find it and get it back. The other is to protect any data stored on it – your files, your passwords, any personal information.
Apple's Find My iPhone and Android apps such as Lookout promise to protect your tablet and your data.
They let you track its location on a map, lock it and wipe it to protect your data from thieves.
They can also force the tablet to make a loud noise even when it's on silent mode… at which point you discover it's down the back of the sofa again.
For Apple tablets
Apple's Find My iPhone app promises to help with all of the above concerns. Your devices need to be signed in to your Apple ID to track and be tracked.
First set up Find My iPhone on your tablet by following these instructions.
Then if your tablet is lost or stolen you can follow these instructions to take charge of it remotely.
For more information, read our guide: What to do when your iPhone is lost or stolen.
For Android tablets
Lookout for Android works much the same way. First download the Lookout app to your tablet and set it up.
Then if you lose your tablet you can log into your Lookout.com account from any web browser to find it, view and download your backed-up data and sound a loud alarm.
If you pay for Lookout Premium you can also lock it and wipe it.
Use your tablet anywhere
Some tablets have a SIM card, like the ones found in mobile phones, so they can connect to the internet anywhere. If yours doesn't, and you have a smartphone, your tablet can connect to the internet wirelessly via your phone.
On an iPhone go to Settings > Personal Hotspot
One of the downsides of Android phones compared with Apple iPhones is that they don't all work quite the same. They're each "skinned" by the manufacturer, so menus are similar but not identical.
However, the path you need to follow would be along the lines of:
Settings > Wireless & Networks > Mobile Network Sharing > Portable Wi-Fi Hotspot
Settings > Tethering and Mobile Hotspot
You can choose your own name and password for the hotspot if you want. Then, on your tablet, simply log in to the hotspot as you would any other Wi-Fi network.
How to use Wi-Fi