Yesterday, I spent much of the evening coding on my website. Towards last, I had one float issue, which I solved, and when opening the page in IE9, executed a Control F5 to refresh the browser. The issue was gone and the page displayed correctly. This morning, I accessed this same page from a different computer. I renamed my page .shtml yesterday, and the computer I'm using this morning had never visited my page with this new name. When my page opened, it displayed the layout with the float issue. I executed a Control F5 and it refreshed and displayed it correctly.
Question: How can two computers, that aren't even networked together, although they are both in my building, share a browser cache?
Has this ever happened to anyone else? This is odd.