Jews have an annual day of seeking forgiveness (Yom Kippur).
Orthodox Catholics make seeking forgiveness a lifestyle, or at least they used to, as Cardinal Dolan notes in a blog bost.
Mainliners make forgiveness a corporate affair, focusing on collective sins rather than individual ones.
Evangelicals often assume that forgiveness is a one-time affair handled at Golgotha and forget to look for forgiveness for the stuff done since then.
The Catholics seem to be on to something, although it plays into an open-ended salvation where you're not sure of your salvation until death; making sure as many sins as possible are repented of seems to be crutial in that setting (although I paint with a rather broad brush there).
We can cut out the middle man of the confession booth and ask God directly for forgiveness. We're (or at least I) just not as used to doing so as we should.