I try out the new umbrella that I bought when my old one gave out a few weeks ago. The perky, polka-dotted one. The one that felt so lightweight when I held it in the store. No problem to schlep it around in my bag every day.
But when I opened it up I quickly learned why it was so lightweight. It's teeny! It barely keeps my head dry, let alone my sleeves or pants legs. Maybe I should have paid more attention to the diameter measurement listed on the label.
New plan: this will be the backup umbrella, the one I always have. On truly rainy days (like today), I'll carry a full-size model. Heavier, true, but eminently more practical.