I usually buy tees from Cotton Traders. There's an organic cotton one in white for £15 on line:https://www.cottontraders.com/women/tops-and-t-shirts/anything-but-ordinary-organic-cotton-t-shirt/AA14954Fern.html?dwvar_AA14954Fern_color=Fern&cgid=womens-tops-tshirts#cgid=womens-tops-tshirts&start=2&list=product%20list&p=1
Do you try to keep childcare (fairly) equal between your grandchildren?