Costumes were very important. They were described in detail in the local press. It was noted that excessive extravagance could be risky, as a ball gown could both enhance a woman's beauty and expose her to ridicule. Costs also mattered greatly. There was even a saying in Poznań: "If you want to please your husband, wear last year's dress."

In the 1930s, major changes in social customs took place. The fashion for "dancing parties" emerged, gradually replacing traditional balls. Poznań then became more similar to Western European cities. People mainly danced the foxtrot and the Charleston, while tango was considered indecent in Poznań.

A very popular venue was the Palais de Dance, where people partied until morning. Dancing events at the Ziemiańska Confectionery were also eagerly attended, where the cabaret "Pawie Pióro" operated.

In the 1930s, women in Poznań kept up with European fashion, mainly Parisian trends. The most expensive gowns were bought in Paris and London, and in Poland at the Herse fashion house in Warsaw, advertised as "the best Polish manufacturer of women's and men's fashion."

Good-quality accessories could already be bought in Poznań. The most common shopping destination was the Stanisław Kałamajski Department Store ("Kałamajski is the best"). Luxury leather goods, including small carnival handbags, were purchased at Stanisław Jaeschke's shop at 10 Wolności Square, while jewellery was bought from the W. Szulc and W. Kruk companies.