When it fits, it fits.
The number one frustration, for those designing content for social media, would have to be proper sizing. Images are becoming more and more important for any brand-building or online communication. I have yet to find an easy mobile app that will address resizing on the run, but I have found one that addresses it on the desktop.
Here is an excellent PDF showing the latest Facebook Creative Specs As of June 3, 2014
Sizing G+ Images at 800x600 will make sure they show up the same on mobile and desktop. Twitter has a mind of its own. For now, we must bend to its wishes to be sure our message isn't be-headed or knee-caped. I saw a post of two of my friends talking last week and the Twitter preview only showed the parts of their bodies that told a different story than intended. Let's not do this to our brands!
Confused yet? Get to Canva and set your templates. Yes, you can still take that square photo and send it everywhere, or you can create text on an image that people have to open to see. But taking the time to create your key original content is worth the trouble. Once you have that perfect fit, tailored just for you, it's hard to go back to the off-the-shelf images that seem easy.
Now someone please make this easier for mobile on the go creations! Do you have any photo resizing tips or comments?