Couple o' things in no particular order I didn't see mentioned yet:
1. Do not "tune" your S&W revolver using the strain screw (either by backing it out or by shortening it). Keep it tightened fully. A dab of blue Loktite is extra insurance.
2. Especially when using push-release type speedloaders, use a strong-hand reload as your default. Doing so supports the cylinder during the reload and keeps the yoke screw (the Achilles heel of the S&W revolver) from overloading.
3. Do not ride the trigger back during re-set. It's a bad habit many (most?) revolver shooters have, but letting the trigger push your finger forward risks a short-stroke. It becomes an even bigger issue if the action's been lightened.
4. If you reload, be sure your primers are fully seated. High primers can easily jam the action.
5. If you have recessed chambers, clean the gunk out of the recesses as part of your cleaning routine. Gunk left in the recesses can prevent full seating of the rounds.
6. Removing the sideplate isn't necessary for regular cleaning. Nor is disassembling the cylinder assembly.
7. If you do remove the sideplate...there's a right and a very wrong way to do it. Do your research beforehand...and use the correct screwdriver.
8. If you do remove the sideplate...loosen the strain screw first. And do NOT cycle the action with the sideplate off and the mainspring tensioned.
9. If you use rubber grips that use a side-screw, do not excessively tighten the screw, lest the mainspring get pinched, robbing the hammer of some oompf.
10. When changing the front sight on S&W revolvers with a pinned front sight, do NOT use a 1/16" punch. The pin is slightly smaller than 1/16", so you'll have a heck of a time doing so, and the results of your oversized punch will be left on the rib.