The biggest promotion on https://www.ryanair.com/ as I see it is "Two-night stays in Europe from €88" — weekend trips are a big part of Ryanair's business.
A toothpaste tube, deodourant and a mini shaving foam fit easily in the 1L limit.
Liquids really don’t need to be a big issue. All my toiletries are in a 1 qt. Ziplock even for 2 or 3 week trips. I know some people carry a lot more than that but it’s often not needed.