It’s nice to have a PCB  for your project, but what happens when you run out of room? Double sided PCBs, of course! And, as Instructables member tinygeek points out… it’s easier than you think!

>> How to make 2-sided Printed Circuit Boards (Instructables)

Found this bookmarklet created by instructables user liammk. His bookmarklet opens the current page as a cached version from Google, thereby killing the 404 and showing the page Google has a record of (hopefully pre-404). Now, because it uses Google’s cache, it won’t work for all websites, but it will for most.

/>> Getting around the dreaded code 404 (page not found), Instructables