I do can some, because I run out of freezer room this time of year. I prefer freezing, though, because Vitamin C survives the freezing process better that way. I blanch mine in boiling water and peel, and then chop them and freeze. You can freeze them whole, too. Or you can cook them down into sauce and freeze that.
I have frozen in jars-- if you do it that way, leave a few inches of headspace, because it will expand, and you don't want to crack a jar. I also put each jar into a freezer bag and take all the air out, to prevent freezer burn. I reuse the bags for years, so I don't worry about waste so much. You can also just freeze in freezer bags just fine, but I find that sometimes I get leaks when I thaw. That's because once the bag is frozen, if it gets banged in the freezer, it can get little holes at the seams.