Here is another quick tutorial – How to make barcode. This is really easy and fast technique. You can see final result here »
LEVEL: Beginner
WHAT YOU HAVE TO KNOW: Make selections
Step 1 – Select Pencil tool [B], black color and draw some random lines.
Step 2 -Select Marquee tool [M] and make selection 1 pixel height. Press CTRL+SHIFT+I to invert selection and hit Delete, or Edit » Crop Selected Bitmap
Step 3 – Select Scale Tool [Q] and scale object like this, or type a number in properties panel
Step 4 – Select part of the object and delete it
Step 5 – Type some numbers in the white area
