Your a decent traveller, know know to bargain, can spot trickery a km away. Thats great, but there might be other shortcuts or hacks you need while you research, plan and travel.
As seasoned travellers will know an onward or flight flight ticket can be required by the Immigration authorities of certain countries before passengers can check in at their departure airport. There are many ways to circummvent (German) this requiremnt.
Rent a ticket: You can rent a flight tickets (travel itineraries) with your name on them to use as proof of onward travel plans when you travel abroad through flyonward ($9.99) or onwardflights ($7.00). Of course, you can also book and cancel a flight yourself if you use a travel agent.
Fake a ticket: You can also download a image of ticket from the web, and photshop it. You can also use return glights as a means to fake a ticket. It might be best if you have an old ticket in your emai lfolder.
Disposable Flight: You can book a cheap disposable flight ticket fro ma low cost airline far in advance, and simply dont use it. You can take a chance and book a bus ticket. You might need to persuade airline checkin, immigration etc. that this is a legitiamte way to leave a country (over land).
Refundable tickets: You could book (and later cancel) a fully refundable airline tickets for almost all airlines. This may be an expensive business or first-class tickets. These tickets are at least twice as expensive as a normal ticket. Before you buy, check the fine print. There may be high cancellation fees or you'll get a credit check rather thana refund. You can find refundable flights on Travelocity , by clicking the Advanced Options "refundable flights".