This tutorial shows you how to clear Magento cache. You should keep cache disabled while editing the Magento core or template files. Follows these step to disable/ clear magento cache
1. Open Magento admin panel
2. Go to System>Cache Management
3. Check all Cache types and in the Actions box select refresh
4. Then select all Cache types and in the Actions box select disable
5. Also click Flush Magento Cache and Flush Cache Storage buttons
Now you are free to perform any changes to the template files.