I just discovered HotelClub and it seems interesting - they managed to get the best price for the Hotel in Geneva I am wanting to stay in. I am slightly concerned about the "sign a voucher and hand it in to reception" idea, but I'm not sure why. Has anyone here used them? I have stuck an affiliate link in my sig for the moment, but it may not be worth it. I read a comment about them overwriting cookies, but no details - anyone care to enlighten me?