I use a pop filter, and sing off axis on the plosive. You have to be paying attention to the words to be able to get the plosives off axis while singing the rest on axis. Then, it might be a case of not being into the song as much as one would like to be to capture the emotion.
Singing techniques and a good pop filter go a long way toward eliminating them.
As has been said though, even a pop filter won't stop them all 100% of the time.
Case in point: I recorded a female vocalist and we ended up with a few plosives in the final takes.
I realized this after the session was done. To get her back to fix the few plosives was not too likely any time soon so I had to play with the tracks and see what I could figure out.
Here was the solution: I stopped the time line right before the plosive. I zoomed in close enough to see where it was. I dragged across the timeline in the precise area of the plosive and used the audio effect to reduce the volume by 2 db. I applied the effect and played it back...... still too prominent, so I repeated the process until the plosive sounded normal and natural. Then I backed the time line up a few measures so I could hear it in context. If it sounded good I saved the project and moved to the next one.
This process worked well for me. When I was done the vocal track sounded fine.
Come & Go updated version on my sound click site: the words: "compromise & pushed", were the worst offenders.