A classic question you're asked when traveling for 7 years straight (haven't we all?) is of course how it's possible to keep a budget for that long.
Thor has a budget of 20USD per day which covers transportation, food, accommodation and visas. Yes, you read that right! 20USD - it doesn't sound of much, and it definitely isn't suited for a flashpacker.
But if you're strict with you budget, this actually works. Thor elaborates that some countries of course are more expensive than others, but as a rule of thumb he has 20USD per day for the entire journey - and through sponsorships and help from friends and family, this has worked out so far. It doesn't mean that he can't go for a beer or pay the cinema a visit once in a while, but in that case he just saves money during other days. He has a few good tips to how you can remain within the budget, though.
When traveling with local transportation you simply choose the "chicken bus" instead of the high end bus. That means no aircon, most likely no windows, a lot of noise, stops a million places along the route and often takes 3, 4 or even 5 times the amount of time compared to the luxury transportation... but it's cheaper!
In terms of food, Thor has a crystal clear recommendation: Eat street food! It's much cheaper, and if you happen to be in a more expensive country, go to the supermarket and buy bread, cheese and some tomatoes and go for a picnic in a local park.
Accommodation can be done cheap as well, if you're not too picky with where you sleep. Couchsurfing is one thing, while hostels is another thing. Often you get breakfast and WiFi included when sleeping in a hostel.
Visas on the other hand are often a more costly affair, and they can easily cost between 15 - 200 USD, but the frequency of getting those (when traveling for 7 years) is of course not high, which gives it a low average cost per day.