There a tons of sets, like the mini car, traveler, ninja training, ninja assault, and farmer are all cheap sets under $10
look for Legos at garage sales.
wal-mart
Try bricklink.com. It's pretty much a Lego marketplace where you can get used set and parts.
you can sometimes get them from the Lego store on line but i am not sure if it is cheap about 300 dollars
Cheap Lego sets can often be found on sites like eBay or Amazon.
You can't really get a free Lego set unless a friend gives you one. Find cheap ones on sites like eBay though! :)
ebay
LEGO set 8631 is LEGO Agents set Mission 1: Jetpack Pursuit.
The set number is 10167.
Is there a Garfield Lego
BrickLink is an online store that sells LEGO. They can sell LEGO very cheap because it is all secondhand LEGO. You can buy LEGO in bulk or just buy certain pieces that you need.
nowhere