The commercial solution
If you’re really worried about damaging the sensor you can find service centers that will do it for you. Some camera manufacturers will do it for free (at least for a new camera), though of course for most users that means shipping the camera off and waiting a week or more for it to be returned (plus you’ll pay shipping costs). A number of camera stores and independent repair centers will also clean sensors with a cost somewhere in the $30-$50 range being typical. Some may do a good job, others not so good. In general, I’d recommend doing it yourself because it’s much faster, more convenient and in most cases cheaper. However, if you decide not to then commercial cleaning is available.