Aldi Bag
From Homestar Runner Wiki
The Aldi Bag an old plastic grocery bag that Senor Cardgage is almost never seen without. It either contains cold pizza, rotten vegetables, the shattered pieces of Senor Cardgage's former life, or maybe just melty candy bars (to be eaten really loudly while standing way too close to you in line). Senor Cardgage also uses this as a pillow.
Aldi is a discount supermarket chain that originated in Germany, and is now found in multiple countries around the world.