What’s the best way to capture all info on a webpage? or How to capture all info on a webpage—any too

Ctrl+S is hit or miss, yeah. For something cleaner, try Print Friendly & PDF. It lets you edit before saving—remove ads, adjust text, etc.

Not perfect for dynamic content, but great for articles.

Also, Firefox’s "Save Page As" (with "Complete" option) works better than Chrome’s, IMO.