Keeping them dry helps them last longer! We have taken the water out of the bars to make them a solid form. You have water at home and can add it when needed! To get the best out of your bars be sure to keep them well drained and away from water between use.
We have some fab bamboo draining dishes that have open-slatted bases to drain away excess water. Using metal or tin boxes really isn't the best option as the bars can get stuck to the base.
We also recommend you use the box that your bars arrive in! Simply pat dry and return to the box & store outside of the shower recess. The box will last the lifetime of the product and you can take it travelling too! Super thrifty too!