Step 1: Search the forums to see if your question has already been answered. I find the easiest way to do this is type "permies ___(whatever your question topic is)" into the google search bar.
Step 2: If your question hasn't been discussed or answered on permies before, please ask it in an appropriate forum. Yes, I realize that Paul is a smart dude, but there are TONS of smart people on the forums that can probably answer your questions just as well as Paul could.
Step 3: If you post your question and it doesn't get answered, or it doesn't get answered sufficiently in your opinion, and you still specifically want paul's feedback and 48 hours have passed, post to the "tinkering" forum with the subject line of "invoking the 48 hour rule" - and put a link to the thread in the post.
Step 4: Some people just don't like the forums. If you don't want to post onto the forums, Paul charges $500 an hour for phone consulting.