Shuck the corn. Yes, it might take a while. Just pull up a chair and get to it. And the silk? I've found it's just easier to remove them by hand, even though there are tons of gadgets out there that supposedly do it better. Shucking corn is quality time for me. Enjoy it!
Put the ice into the cooler and add water to nearly fill it to the top. This will be the ice bath used to stop the corn from cooking after you remove it from the boiling water.
Fill your pot with water and place over high heat and bring to a boil. I use an outdoor propane burner from Bayou Classics. It boils water in a jiffy, and as an added bonus it sounds really cool.
Add the sugar to the water. I do this because I believe that the first batch of corn loses some sweetness to the water, so I add a bit of sugar. After the first batch, the water gets flavor from the corn so I no longer add any more sugar.
Add the corn in batches, but do not overcrowd. Let it boil for 5 minutes.
Remove corn to the ice bath and start your next batch boiling.
As soon as the corn is cold remove it to the bath towel and dry it just slightly. You don't have to get it perfect,you just want to sop up and excess water. You can also just shake the excess water off.
Put the small bowl, upside down, in the center of the large bowl. Cover the small bowl with the small towel. This is where you will cut the kernels from the corn. The towel keeps the ears from sliding around (and you getting cut).
Take each ear and stand it straight up (shank side down) on the small bowl and towel. Holding it at the very tip, run your knife down the sides, close to the ear, cutting off all of the kernels. The kernels will fall into the big bowl, preventing you from making a big mess! Get as much as the kernel goodness as you can.
Continue working in batches until all of the corn has been boiled and the kernels removed.
Now, place the kernels into the vacuum bags. I use quart-sized bags and put about 4 cups in each bag. This is roughly the equivalent of 2 cans of corn.
Place the bags into the freezer unsealed. You want the corn to nearly freeze first. Otherwise the moisture will make it impossible to seal them.
After a few hours, remove the bags and seal them per your sealer's instructions.
Note: If you have room in your freezer, it is worth saving some of the water you boiled the corn in for soups or chowders.