While i was using Internet explorer it was easy to clean cached memory but how would you clean it up from Google Chrome?

http://www.chromefans.org/chrome-tutorial/clear-cache-in-google-chrome.htm
hope this is what you are looking for.

 GO to setting (click top right cornor) go to history -->clear all browsing data....you can checkin to clear cache.

 Try using incognito window. That's what I do at work 

 Ctrl+Shift+Del then select empty cache option and press clear browsing history.