I buy the HobbyKing brand CA and really like it. The bottle have the screw on top with the pin down the middle similar to Mercury adhesives that keeps the nozzle open. I saw my old bottles and nozzles and keep clean nozzles handy..... when they get junk all over them on the outside, I just throw the nozzle and cap in a jar of acetone I keep on the bench and put on a clean nozzle.
I've also seen some folks use those tiny little push on applicator tips and they say to just leave them open and they don't clog. On the off chance they do, they just snip off about a 32nd... I haven't tried that, but it's worth a shot I guess.