Getting the sensor cleaned?

I have a used 30D that I've had since '09 and I haven't ever had the sensor cleaned. Where/how do I accomplish this? Thank you.

A little old but still useful;
https://photography-on-the.net/forum/showthre​ad.php?t=68949

A thread on cleaning sensors with tutorials

My favorite method is a lens pen A new unused one.
They even make sensor cleaning pens now.

First I always use Air if possible (hand pump blower, I have a hurricane not a rocket so mine won't stand on the table; do not use compressed). Once every few weeks is about how often I do this.

If air doesn't work I go to a wet method (probably only once or twice per year per DSLR)
$2 in alcohol, $10s for a 100 pack of pec pads, and about $3 in icing spatulas, a little work with scissors, several videos about wet method cleaning on youtube; and then practice round on the oldest DSLR available
The Method: http://www.cleaningdig​italcameras.com/howto.​html
Background info: http://www.cleaningdig​italcameras.com/method​s.html
It's really not that bad once you are mentally at piece with it, do it where there is as little dust as possible (one time I had sent my DSLR to be cleaned they got the one spot off and left me with 100 new spots). I also like it because I can get the alcohol readily at most drug or grocery stores and it's easy to have the pads and spatula in a zip lock bag in a suitcase, so it's fairly travel friendly.