Nesting CFLOCK tags may cause a deadlock, which will crash your server.

If there is a variable in the CFERROR template it will throw an error.

You must use an absolute url in the URL attribute of CFSCHEDULE

CFTRANSACTION tags cannot be nested if the inner transaction action is BEGIN

The OnRequestEnd.cfm file must be in the same directory as the Application.cfm file

The template in the CFINCLUDE or CFERROR tag does not exist.

Query strings will not be processed within a cfinclude

You should use the maxlength attribute in your form elements

Some tags implicitly define cfoutput for you such as cfmail, and cfquery

Although it is syntatically correct to omit the column list, it leads to difficult maintenance