Where can you find a replacement bulb for a fog lamp of a 1999 Chevy Cavalier Z-24?

No...the 99 has 2 bulbs and the 01 has 1 bulb

It comes out the back of the light housing.

How do you replace a turn signal bulb in a 1998 cavalier

1999 Chevrolet Cavalier turn signal light bulb lamp replacement: Purchase the correct replacement turn signal light bulb(s) first, before disassembling the vehicle. See sources and related links below for replacement bulb information. Then consult your owner's manual for the turn signal light bulb lamp replacement procedure. As simple as it sounds, the owner's manual is the best place to start for bulb replacement instructions and illustrations. You may want to consider replacing both left and right at the same time in order to keep brightness and color equal (optional).

2002 Chevrolet Cavalier headlight bulb replacement: Purchase the correct replacement headlight bulb(s) first, before disassembling the vehicle. See sources and related links below for replacement bulb information. Then consult your owner's manual for the headlight bulb replacement procedure. As simple as it sounds, the owner's manual is the best place to start for bulb replacement instructions and illustrations. You may want to consider replacing both left and right at the same time in order to keep brightness and color equal (optional).