Place Sour Cream in a Ziplock

We have tacos a lot but we were using way too much sour cream. So I took a zip lock bag (a big one), opened it up, put it in a cup, filled it with the sour cream. Took the bag out, pushed all the air out, and with scissors I cut down the middle and tie it, cut a small portion of the tip and use. We use less sour cream and not only that, we don't have a blob of it in one spot but a little all over.