A tree for £4.95:
In those grimy pre-internet days, tracing my family tree would probably have meant spending a small fortune and several months in dusty archives kow-towing to even dustier librarians. Last night I whizzed back through five generations in an evening, to a great-great-great grandfather born in 1821. For a cost of £4.95 to the 1901 Census, and then some puttering around in the free LDS archives. At that point I exhausted the online archives, and now have to turn to Parish records, by post. These, surprisingly, go back to the year 1538. So, with a bit of luck, I may get a family-tree going back to the late middle-ages.