I have used Comcast for a while and just found out about a few pretty cool tips of things they offer to customers.
I recently had to upgrade my router and went and bought one for $80 from Best buy. Ran into problems and called the trouble shooting hotline. The problem was obviously the router because my old slower one still worked. Anyways he told me I needed to contact my ISP. I called Comcast and they said did you know we offer a free Wireless Router (a good one) to customers who rent a modem off of us.
Tip 1: They offer a free modem to customers who rent a router.
Tip 2: The second thing I discovered is they also offer Norton Antivirus free so you don't have to buy it. You have to dig for it a bit but its there. It used to be Mcaffee but now its Norton.
Don't ever say I didn't put money in your pockets.