[kevin993]

Boutique travel concierge service. You go to interesting places and have more travel experience than most others. Sell bespoke trips to accompany travelers on their travels. You can take business that you want and reject business you don't want. You don't even need to accompany each client on their travels, so you might be able to consider some of your travels to be business-related research. You could also sell your services to clients to make the most of frequent flyer points and other travel programs. In either case, you can do as much or as little business as you like and work when you want to work. Your blog can be part of the business - advertising and travel tips for potential clients. You gain a legitimate business where your travel expenses are reasonably viewed as business expenses. Periodically, you can then self-publish travel diary type books (think more travelogues than trip guides). Realistically, you don't need to compete with Rick Steves or Fodors - you just need to have some low cost "what I saw when we went to XXX place" type books on Amazon. Self publishing is a lot more viable than it used to be and you just need enough to justify the travel expenses.