Having backpacked through Europe, I can honestly say knowledge on how to budget is essential. Europe is the most expensive continent to travel around. Be careful! "How Much to Budget for Backpacking Europe"
How Would You Like A Driveway That Twinkled Like Fairy Lights Every Night? http://theownerbuildernetwork.co/h38u It is possible by using "glowstones" in your concrete mix, but it is not cheap. The upside of the extra expense I guess is that you wouldn't need any outdoor lighting as the stones hold light for around 12 hours.