Cheap mod thread 3rd Gen TL

Hey guys! I'm new around here so I though I'd make a post that could get my name out there a bit, I drive an '04 TL and have many plans for it in the near future. I thought it would be cool to make a thread on cheap mod ideas for this era of TL 's. Please comment your ideas with price and links if possible! Let's keep it under $120.
I'll start it off by saying wind deflectors off eBay, costed about $50 with shipping!