Just when you think you know them all 
We all know that F5 forces a web page refresh in your browser. The trouble is, that just refreshes it from the local cache. CTRL+F5 will forces the browser to re-fetch the entire web page from the server.
This tip and a few others for all the major browsers running on the Windows platform are here:
CTRL-F5 actually forces the browser to go and re-fetch it from the server.
CTRL-SHIT-DELETE brings up a form to allow you to delete the cach
- CTRL+F5 actually forces the browser to go and re-fetch it from the server.
- CTRL+SHIT+DELETE brings up a form to allow you to delete the cache.
- CTRL+H brings up your browsing history
- CTRL+F4 closes your browser window
- CTRL+W closes the current tab
- F11 toggles between full-screen and the regular view
- CTRL+TAB switches to the next tab
- CTRL + (click hyperlink) opens the link in a new tab in the background
- CTRL+SHIFT+N (Chrome) opens a new window in private (aka Incognito) mode
- CTRL+SHIFT+P (IE & Firefox) opens a new window in private (aka Incognito) mode