Samuel and I leave tonight on the big overnight ferry that takes us down to Aberdeen. We will be in Glasgow tomorrow and then Frankfurt on Wednesday. We are doing this trip really cheap - using buses and cheap flights and sleeping on the floor of the ferry (tonight) and Frankfurt Hahn airport (tomorrow). Our bus ticket from Aberdeen to Glasgow was £6 each and our Ryan air flight to Germany was about £12 plus taxes and other charges [more like £45 each). Once in Frankfurt, we are staying at the Stay and Learn Youth Hostel in a dorm room.
So, travel doesn't have to be expensive. Packing a sleeping bag and air mattress (for airport floors) is a big help.