There were literally only three things on her list. Gwen had actually made a list, and written three things down on it. Three. She'd folded the list carefully, put it in her pocket, and then decided that it was too warm for a jacket today. So that was left behind in her house. It wasn't until she reached the parking lot at the store that she realized the list was folded carefully and left in the jacket pocket back home.
So. Three things. Literally. Three. She headed into the supermarket and found the first one right away. Eggs. That was easy. And then shampoo. Check two. Easy peasy. See? She didn't need that stupid list, anyway.
Wait. Three. Wait. Damn. What was that third thing? So she was carrying eggs and shampoo when she turned a corner in the store (having heard a very familiar sounding voice a moment before) and ran straight into someone's cart.
She let out a little yelp of surprise, but thankfully didn't drop the eggs.