I recently had a client who requested an easy way to create image captions for images added to their content via WYSIWYG and IMCE.
It took me about 10 minutes to find and configure the Image Caption module that automatically creates an image caption from the title tag of an image. All I had to do was enable the modules (Image Caption and the Image Caption Filter), select the content types I wanted to enable image captions for, and add the Image Caption input filter to input format used by the WYSIWYG editor.
Once that was done, I added a few lines of CSS code (as explained in the module's documentation) and it was good to go!