android+photo+apps+I+like

I found Android photo apps that do what I like. The Little Photo app allows you to rename the file immediately after taking the image fairly conveniently.

The QuikPic app allows you to browse your photos in a way that I like (you can sort the photos by name or date, view them as a list or by thumbnails, etc.)

CamScanner allows you to quickly take multiple pictures, enhance them if you like, keep all of the pictures together as pages in a pdf, name the pdf, and export the pdf.