Some tips about software that can resize your photos :D
You can set the frame size on your mobile phone camera itself by going in to the settings
Or you can use FastStone photo resizer
which is an open source photo editor totally free and no forced marketing etc. Download from the above site and install on your computer, and you can resize photos easily.
Or you can install Picsart on your smart phone and edit your photos. Remember to switch off data when you start the app in order to avoid clicking on advertisements.
I saw some extra large photos on a few threads which are too large to view, and to load on the page, hence this thread. Just sharing what I know, although I know that many of you are aware of these, and possibly know much better ways.