Computer knowledge

Waterproof, small and very compact, SD card holder for one SD card. Or maybe another data storage card. Important: -Very waterproof -Shouldn't open when unwanted -Very good material(s) -Durable -Strong By Jeffried Koelewijn From South-Holland, The Netherlands

If you have a lot of two accounts on the same websites you can utilise two browsers. Especially if you always use log in or remember password. If you have two browsers you can use browser 1 for one account and browser 2 for the other account. This works very well. Example: It's possible to use browser 1 for private accounts. And browser 2 for more work related accounts. And it's less possible to make the mistake of putting something on the wrong account.

When typing a password on a smartphone for example, every last typed letter and or number and or character is visable. And this is a problem. It's a vulnerability. And there are even hack tools, script programs with which you can view everything on the screen and then you can get peoples passwords. So it's important that there are only dots. And offcourse also only dots when typing. By Jef Koelewijn

For pictures and videos (mainly with some text): For men: -Being able to set a thumbs up or something else for video and picture uploads, uploaded  by man. -And being able set a heart for picture and video uploads, uploaded  by woman. For woman: -Being able to set a heart for video and picture uploads, uploaded  by man. -And being able set a like or thumbs up for picture and video uploads, uploaded  by woman. So putting that option in the settings. By Jef Koelewijn