Quote Originally Posted by chaika View Post
Летом я ездил в Ирландию.
Летом я съездил в Ирландию.
No idea what the difference might be. :-^(
Suppose, at the end of the year you are reminiscing about how it went. If you are focusing on how you spent your time it is marginally better to use the first option. If you are focusing on your achievements, it is marginally better to use the second. But it is no big deal, in this particular case.