Yes, I agree that sliding glass doors seem so tiresome because it moves the door back and forth along a track instead of out and in like other standard doors. I would recommend you to install a Bi-Fold Patio Doors because it provide more flexibility and convenience and you can enjoy outdoor living at its finest. Last month my neighbor too had remodeled their kitchen and patio area. They had installed bi-fold patio doors in their kitchen which had brought comfort and convenience and expanded their living space and they had also resurfaced their driveway from kitchen to patio area by installing beautiful gravel stone, by consulting some an asphalt companies on Long Island. After the remodeling of the kitchen and patio area their backyard landscaping designs had brought a certain beauty and elegance their home.
We also have a bifold door to our screened porch. Its 9 1/2' tall and 13' wide. 5 Panels. The whole wall opens up. Before the economy tanked, there were a lot of builders who were getting rid of mis-orders, etc. So I picked it up on ebay very cheap. You can get them standard heights as well, and they are a lot cheaper.
We do have a slider off our dining area to access our open deck and understand what you mean by having to have both hands. I would recommend french doors with no window grids. You get the same open window concept with the ease of opening with one hand. I also recommend installing phantom french door retractable screens. You only need one hand to open them as well. When the weather's nice you can open the doors, close the screens and virtually open up your living space.