When visiting Parga - or other places in Greece - I always get my shopping form the local coop shop. A hotel owner once told me that the prices in these shops are controlled by the government and are usually a fair price.
A bag shop.
They have good bags, but most of all I prefer to buy the best Greek brand here.
The Kem Bag.
Every year a new and nice design and very good quality.
What to buy: Look for the Kem bags in this shop
What to pay: Euro 100 - 200 for a bag
There are many small jewellery shops in Parga, and I have tried more or less all of them.
I have though a couple of favourites, that sells to of the top brands of Greece.
Babylonia and GC.
Prices are favourable, not cheap, but lovely and special things
What to buy: The silver with 18 carat cold and gemstones jewels - old style with modern touch. Perfect.
What to pay: You can spends loads if you like, but also reasonable