What does your social media workflow look like today?

I'm launching Post Creator on Product Hunt tomorrow, and before we launch, I want to understand how people are actually creating and publishing content today.

If you create content for multiple platforms:

What's the most annoying part of your workflow?

Writing?
Designing?
Resizing?
Scheduling?
Analytics?

Or something else?

I'm genuinely interested in hearing how you do it today.