Know your requirements:
First of all you should know what you are actually looking for otherwise you will keep on buying unnecessary things. You better make a list of those things that you want to carry back home as souvenirs.
Know your destination:
You should do some research about the place before leaving for that destination. Try to find out what is it famous for and then decide what to grab or leave. Try to discover street markets as they lot cheaper than regular malls and boutiques.
Seek help from locals:
Another way to be a savvy shopper in Europe is to seek help from the locals as they will guide you better than anyone else. They will not only guide you to get the best things at competitive prices but they will also tell you the ways to avoid any fraud and scams.
Buy the items from right places:
In Europe, many shopping malls or streets are famous for certain things like garments, jewellery and cosmetics. You should ask someone and buy things from the places they are made. For instance, if you are visiting an area which is known for handicrafts then you can get some pieces of art without spending too much money.
Do not hesitate in bargaining:
Remember, only branded stores have fix prices so you should not hesitate in bargaining. Buy things in large quantities and ask them for discounts. However, you must be careful while bargaining as at some places it is considered a bad habit. If the price is reasonable then do not try to argue.
You must keep in mind that there are lot of things that you can get at home for the same price so do not bother to carry the extra burden. This will help you to save some money for those things that you did not know about.