Travelling alone is a rewarding and exciting experience, but it can also be quite a costly one. Accommodation can be a particular problem, with many hotels and guesthouses charging single room supplements. However, there are some easy ways to save money. If you’re looking to enjoy cheap travel this summer, here are some great tips from the travel deals professionals at Travelzoo. Drive a Hard Bargain Single room supplements are most single travellers’ biggest gripe. To save a bit of money, it is always worth trying to negotiate reductions, especially if booking a hotel room at the last minute. Hoteliers often prefer to reduce the rates for rooms that would otherwise go…