"Europe is beautiful but so are Southeast Asia and South America (the latter two are way more affordable)."
"Buy a SIM card for your phone when you get to where you are going."
"Bring as little as possible. You can buy things if you really need them. You will be surprised how much you can do without."
And for the sake of driving that point home: "Pack light. Lighter. No, even lighter. You don't need almost everything you think you need."
"If going out of country, buy supplemental health insurance. Also tell your bank and credit card companies you're doing so."
"Go to places where the currency exchange rate works in your favor."
"Practice balance. Pit toilets are far more prevalent than you think."
To reiterate: GO. You've probably heard about all the studies that support the claim that experiences make us happier than possessions. So quit making excuses, figure out a way to make it happen, maybe cut a redundant streaming service (yes, Hulu exists, but does it need to?), and forgo a few Frappuccinos a month; whatever you've got to do, just do it. And heed this particular piece of advice: "If opportunity knocks, answer the fucking door."