All the grocery stores in this area sell bags for $1.00 and I have a huge collection. I just toss them in the washer every so often and wash them and reuse them. Wal-Mart also sell these bags. I hate plastic, they aren't as strong as they were when they tried to make us switch from paper. Sam's club also sells bags and they have bags for cold and/or frozen foods and I use them a lot as well. Yes Aldi's has them as well. Great investment in my opinion.