Has anyone used carbonation tablets to carbonate in bottles? If so, how'd you like them? What type of sanitation is necessary before adding them to the bottle?
You don't need to sanitize them. I've never used them, but people have claimed both success and failure. The people that didn't like them cited uneven carbonation between bottles, and incomplete dissolving of the tabs...leaving gritty white particulates in the finished beer.
I use Prime Dose when I don't keg. I have nothing bad to say about them, They work extremely well. http://www.midwestsupplies.com/prime-dose-priming-sugar-and-yeast-carbonation-capsules.html
I've used sugar cubes in the past, Domino's dots I think they were called. Just clean hands and dropped them in, racked and capped.
I mostly keg, but every now and again bottle if we do a barrel-aged beer or something like that. I have had no issues with carb tabs, though obviously you can get sediment with the bottle refermentation. The reason I like carb tabs is I feel I get a more consistent level of carbonation than I do when batch priming.
This question comes up from time to time. Too bad The Bros didn't build a SEARCH feature into their otherwise stellar forums.
Good for screw-ups when you forget to add the priming sugar and get all the way done and realize the priming sugar is still sitting on the stove, untouched. Otherwise don't bother, do it the regular way. Sanitize and fill bottles normally then drop in the priming tab(s).