It might help to break this down into two steps:

1. Recognizing what software you use on a daily basis that solves a problem or need that you have. Before the software existed, how did people deal with this? Maybe it was a repetitive task.
2. Now that you have a mindset of recognizing problems/solutions in your daily encounters, ideas might naturally show up. It doesn't even have to be a new solution. It could be an improvement on something you noticed in step 1.