Car Accessories Roof Racks

Do I absolutely have a fancy roof rack to carry a kayak?
I am looking to get a kayak and my good friend and me. We're students and I have seen this kind of expenditure will be her just to get a rack on our car (and we still have the cost of kayaks and accessories themselves !)…. my question is … . It is absolutely necessary? Is there a way to use ropes or other things to do the job? For most of us will not travel long distances with them …. we have a lake about 5-10 minutes away … but we want to take them with us at home (his about 3 hours drive) once or twice …. What do you think?
No I use bars of the ladder, well, never had a problem
Thule 682 sidekick Car Roof Luggage Box Review Video & Demonstration

