I've said many times that continuous improvement is a mindset not a project.
It doesn't end, it's a way of life and a way of life that doesn't have to be complicated or difficult.
Deciding what to improve is often obvious - for example customer complaints, operational losses, staff performance. Other times it can be prompted by external events or stimuli.
Maybe something you've seen work really well in another organisation, something you see on TV or even picking out some key words from media reporting (as I've explained in a recent LinkedIn post)
Once an area or activity has been selected, then it's basically
1 'how are we doing today and how do we know?'
2 'how can we improve and what would it take?'
3 'let's test, practice and make sure it works as we think it should'
4 'it's worked so let's deploy and embed in our business / charity'
5 'let's celebrate it's worked and then onto the next area or activity'
Obviously there's a bit more to it than that, but honestly, anyone, any business, any charity can be better every day and I'm happy to prove it.