Cigar lighter is not working ?

Hey just for the record -it can be the lighter itself - they do not last forever-cheap test -just about everyone has something that plugs into lighter-ask or use your cell phone charger-it is free. if nothing that you plug in lights up it is the fuse-if something lights up it is the lighter filiment gone in the lighter unit.They are available at car shops everywhere /Rose's, Canadian tire any auto shop-most look better than the original

The fuses are metal-bladed, plastic housing devices and they are sometimes difficult to remove. Many cars have a fuse puller inside the fuse box but any auto parts store will have them and they are included with fuse assortments they sell.
Once you are roaming around getting fuses and puller, consider buying a low-cost digital multimeter too. The parts stores have them or, if you are in the US, Radio Shack will too and don't spend more than $20 US at either, you don't need more meter than that for household use. If you are in the US, check the white pages for your area for Harbor Freight. If you have one, you can buy a meter there for <$10.
With meter, and fuse removed, set the meter to the resistance scale (Ohms) and the lowest setting, generally 200. Check across the metal blades of the fuse and if the meter display shows something close to zero (typically they will show test lead resistance of .2-.6 on the display if the two leads are held together), the fuse is OK. If the display just blinks at you as it does with nothing connected to the meter leads, the fuse is open (blown). 
The fuses are color coded but make sure that the value of the fuse (from your newly purchased handy assortment) is the same as your old one unless it is something under 10 Amps. If it is, use a 10 amp fuse as the replacement.
And remember, smoking kills - (us).       

To remove fuse grasp with needle nose pliers or tweezers and pull out. Hold the fuse up and if there is a dark place inside or you can see that the wire inside is burnt in two the fuse needs replaced.