An unspoken contract to give/receive Red Bull's between two coworkers. Whenever one of them buys a Red Bull on their way to work, they will buy one for their coworker too.
There is no requirement for an equal amount of giving and receiving. The contract remains fair as long as it remains unspoken.
The ability girls and women have developed to hold several items at once in one hand. The skill has been developed due to the lack of pockets in women's clothing.
I thought she'd need multiple trips to carry her phone, keys, wallet, and Starbucks to her car since she needed the other hand to open the door, but she used her impressive girl grip to carry everything in one hand.