Sometime you may want to save entire a web page, you know for documents or receipts you may need later. but don't necessarily need it now or your printer is out of ink?
introducing CutePDF Writer
CutePDF - Convert to PDF for free, Free PDF Utilities, Save PDF Forms, Edit PDF easily.
Just install it and you can "print" anything as a PDF file.
after installation, CutePDF writer will show up as a printer on your computer. Just select it as the destination for whatever it is you want to save.
Why I recommend it -
saves a web page as 1 file, instead of a file and a folder. which drives me insane. and it's absolutely free.