I know several members of TPF do this, and I do too. I put a cardboard in my Louis Vuitton Speedy so that the bag will not sag. Although I haven't done this to any of my bbags, I think I will start doing it too. Bags with broad bases, like twiggy, city, work, weekender, part time, shopping, box, matelasse... how many of you out there put cardboard or other forms of base so that your bbags will not sag? Tips please!