What are some things I can do to my truck that are cheap?

I bought my first truck about a month ago it's a 2000 ford f-150 4x4 XLT extended can. I wanna fix it up It came with running boards, a brand new Kenwood radio, interior led's, magnaflows, and a toolbox. I already have two 10" Sony Xplodes that I'm about into install but I was wondering what else I could do to it for a cheap price. What are some things I can do to my truck that are cheap

First thing I would add is a Back Rac and LED Spots mounted to it.