Try Scrapbook, the add on for Firefox. I’ve been using it for years. You can bookmark or capture the entire page and links in one click. It works great for things you want to save and read later without being online or just to be sure you have captured in case the page goes away.
That won’t save the links as well, just the viewed page. “Save as” is what I do all the time, due to my flakey internet connection. I have 3 DVDs worth of web pages.
I just looked into this one based on your post and it appears like the name says it all… you’d use if for reading a page later rather than sending yourself an email link or trying to remember it and look thru your history.
But what if you want to include it in your bookmarks to refer to over and over again… both on line and off line.