Just a follow up on Rich Murphy's comment on purchasing good blades. If one purchases a table saw blade that is not flat, the run out (or slight wobble), will rarely be satisfactory and often noisy. Woodworking is not an inexpensive hobby, but if one does not a good quality blade, almost all cuts will challenging. A good quality blade, either standard kerf or thin kerf, will run whisper quiet and will cut smoothly. Sharpening will not make a difference. I'm not suggesting a $150 blade, but some bargain blades are not designed for the smooth cuts that many woodworkers seek. Be good to yourself and shop for a $40 or $50 blade. The likely increase in quality will be worth the slightly higher price. Good luck.