Top tech hacks: you need to know these blatant tricks

Tech hacks are not only brilliant, they also save your wallet. We have tried the best tech hacks and present them to you in this overview.

iPhone hacks: get the most out of your iPhone

Prevent cable breakage: The Apple headphones included with the iPhone are not really stable. To prevent a cable break, simply wrap the pen of a ballpoint pen around the cable. This stabilizes the cable and does not break so easily.
Build iPhone holder: Without any great handicrafts, simply take an empty cassette cover and put the iPhone in - done.
Take easier selfies: Open the camera app on your iPhone and press the volume up button on the edge of the iPhone. This will trigger the image and save it directly in your gallery.

So that your smartphone doesn't have to lie around on the floor or in the room when charging, you can build your own smartphone holder.
For this you need an empty shampoo bottle and good scissors. Alternatively, a carpet knife is also possible.
We have summarized the further procedure in these instructions.

You only need a balloon for this unusual cell phone case.
You have to blow it up first and hold the end closed. Then gently push the phone in.
Now let the air out slowly until the balloon is completely around the cell phone.
Now pull the rubber into place and you can cut off the flap of the balloon.

This smartphone speaker does not work with electricity, but entirely with the resonance of a toilet paper roll.
You will need scissors or a box knife and a toilet paper roll. You can also use a paper towel roll for more sound.
You can find all the instructions in our special article.

Simply breathtaking: You can create a 3D hologram with your smartphone, old CD cases and a little crafting skill.
To do this, first cut out a pyramid from paper, which serves as a template for the CD sleeves.
When you have then cut the pyramid from the CD sleeves, you have to join them with some adhesive strips.
Then you can start one of the many hologram videos on YouTube and see floating figures on your smartphone.
The full instructions with the exact dimensions can be found in our DIY tutorial.

The principle: The smartphone is plugged into a stable chewing gum tin so that it cannot fall over.
You will need an empty plastic gum can, scissors, pen and ruler, and a piece of cardboard.
You can find all the instructions on this page.

You can get faster WiFi at home with a repeater. It quickly costs around 100 euros - but you can also build it yourself:

For this you need this PDF template, which you have to print out.
Then cut out the parts of the WLAN amplifier from the box.
Glue the parts to a piece of aluminum foil and remove the protruding edges.
Then cut the slots and the crosses marked on the form. The antenna of the router will be inserted here later.
Now push the tabs of the round reflector part through the slots of the rectangular cut so that the aluminum foil lands on the back of the reflector. Now fold and glue the tabs - done.
All details, pictures and tests can be found in this manual.

Old CDs are too good to be thrown away. But we have a cool DIY guide that you can use to build a lamp out of it.

Don't you have enough? Then read now how you can produce champagne in the SodaStream and convert the device for even more hacks.