[twitter-dev] Getting screen_name from id without gazillion API calls?

[dizid]

Hi,

When i request friends (or followers) from the Twitter API i want to
get the screen_name's based on the id's.

I use users/show for this, inputting the id and getting back de
screen_name.
This costs ALOT of API calls and i run into the API rate limit fast,
especially with many friends.

Is there a better way of getting screen_names for friends / followers?
( Better, meaning in fewer API calls.)

Thank you.