A friend and I drove all the way to Fort William in june to do a 3 day cycle tour. We got there, unloaded the car, and he'd left one pannier in his front hallway, so only had half of his kit. Luckily, he'd managed to bring the pannier with his cycling shoes and tools in, and left the one with all of his cycling clothes at home. We had a quick trip to an LBS the next day and got him kitted out, although he had to share my toothpaste and deodorant all weekend...