Around here, we just take them to the bottle depot, and a can of soda/beer/juice whatever, a normal sized can you get a nickel for each one.

So to get $20-$30 worth, you'd need about 20 cans=$1, so...$5=100 cans, so...400-600 cans to get $20-$30...that's a lot of cans bro.

But again, that's here, not there, but I'm sure it would be aqround the same. Give or take a few cans and dollars.