Summarize the following:
Assess how much money you have available for the vacation. Keep in mind your ongoing expenses that you'll need to take care of when you return like rent, utilities, and food costs. You don't want to stress yourself out during your vacation by having no money for when you return. Ask around if anyone you know has visited your destination. While websites and web reviews are helpful, you don't know if they've been influenced by local sponsors or the like. Friends and family will give you more personal and trustworthy advice. Ask questions like "What does a meal cost there?" or "What are some cheap things to do there?" There are numerous websites designed to help your budget specifically for travel. They will help you determine the local costs of goods and what expenses you'll need to consider. Try sites like BudgetYourTrip.com, SavingForTravel.com, and IndepdentTraveler.com. Set up an account and enter the details of your budget and travel expenses.
Determine what you can afford. Get advice from friends and family. Use online budgeting tools.