Your friend is getting married and you have to plan the stag party? Yes it can be time consuming and if you have no event experience before than you will need some service that can make this party for you.
The best way to organize stag party is to just find a company which have listed all activities on their website and you have to choose what you want to do. In Latvia there are many stag planning companies. I would suggest you to use google and read also reviews on other websites. In Latvia there are pretty cheap prices for drinks and other services so you will not need a lot of money for a great stag party. You can find more info in Riga stag do before you start searching for other companies for your stag party.