10 tips for improving SQL Server performance

I usually don't pay much attention to database-related things. I feel good to see this article:
Speed Up SQL Server Apps
Learn 10 useful tips and tricks that help boost SQL Server application performance-and streamline development and deployment as well

The following are 10 tips:
1) Replace COUNT (*) With EXISTS When Checking for Existence
2) Be Careful When Using where in and WHERE NOT IN
3) Randomize Resultset Orders With NewID ()
4) Increase Default Packet Size for Large Data Fields
5) Name Your SQL Server Applications
6) Utilize SQL Server Aliases
7) Disable Triggers Instead of Dropping Them
8) Don't Rename Script-Based Objects
9) Don't Trust Generated Table Modification Scripts
10) Examine Your Apps With SQL Server Profiler

However, the English language is too bad. I can only view it with Kingsoft.