When I was a child I went to this shop with my mother, now I don't buy anything there but it's a lovely shop with good items (maybe for older people than me and with more money).
The best bag for me would be a Loewe bag.
Where to buy cosmetics? If I had to buy cosmetics I would buy in Cosmetic Club. Why? Because they have the things cheaper than other stores and because they send things very fast. I have received the palette which I won in Perlica84's giveaway in only two days. I'm thinking about buying a lot of things for Christmas for me and for my family because if you spend more than 100€ the shipping is free.
Perlica84 cosmètiques knows more than me about cosmetics, she has a interesting blog.