I'm sure this is one of the biggest Goodwill stores in town, and they must have the smallest parking lot. I like to spread my donations around, and because this location is close to home, they get a lot of my stuff.... but I don't drop off on a Saturday morning, and I never NEVER drop off on 50% off Saturdays.
If you try to drop off on 50% off Saturdays, you will be blocked in by everyone trying to buy bags of cheap stuff. You can't go forward to get out, you can't go backward. Invariably, someone has dumped a couch in the night, and it is blocking people from pulling behind the building.... I'm glad they are busy collecting donations, but since they aren't around to supervise the "midnight drop-offs" of less than desirable merchandise, there is almost always a delay.