Disclaimer: I will never say that fire is a bad thing. It saves lives both from cold and boredom when camping, but if left unattended or used inappropriately, it can be dangerous and unpredictable. Don't be stupid.
Step 1: Tools
A knife, good sized and strong
Flint and steel(Sorry, no picture),
9v battery and steel wool,
The matches should include both strike anywhere and light when wet, you could need either.
I suggest you have all of these, they are light weight and can fit in your pocket.