Tonneau covers.

Check out the roll x. There is a guy his name is Chas, I do believe go in the GB section, the price is great and this tonneau is bad it is water proof and also is a hard cover that rolls back. The only thing you have to add is a pop and lock.

 

I have a Roll-X from Bak and it's been great. It has a vinyl covering on the outside but aluminum underneath that rolls up and provides nearly full access to your bed, when needed. The only downside is it uses the bed rails. It actually uses the bed rails to lock down the sides. It takes less than two minutes to remove if you ever want to take it off. I've had mine for a year and I get a drip of water now and again, but 99% of the time the bed is dry. My truck is garage kept, but the cover looks as good today as it did when I installed it last Feb. I have a tailgate lock to help keep things secure.

 

Saving up some $ to get the roll x that thing is all kinds of bad arse

 

Yeah, the Mythbusters did a test and the results said that a tonneau cover is no different than not having a tonneau cover. The only thing that negatively affects gas mileage is removing or opening your tailgate because it actually causes more wind resistance (believe it or not). When your tailgate is closed there is no wind going into the bed because it's positive air pressure. Open the tail gate and now all the air goes over and into the bed and causes drag on the inside surfaces of the box. Close it and it creates a pocket/bubble of air that is pretty much just like having a tonneau cover. So your comment is kinda confusing, the only people that would see better mileage are the people that went from running around with no tailgate or an open tailgate to a closed tailgate and either with or without a tonneau.

 

I have an Access literider.
I wanted something that stood over the bed to shed water and snow. I still have to brush off heavy snow though.

5 year warranty, and I was looking to keep the price under $300.00.

Bought it here:http://www.truckalterations.com/html/accessliterider.html

(recommended from this site as well)

Install is a 4 handed deal to make it easier. The bed rails come off and the cover goes against the bed and then the rails. Which were surprisingly heavier than I thought they would be.

Milage, no difference that I notice. Does a decent job of keeping the water out though.