Thank you all for your great answers!!
As I had mentioned, I usually use mechanical means, aka PULLING weeds and I keep pulling as they come back.
This year things got a bit out of hand, because I ignored them for too long and then there were more to deal with.
I am back to the point where everything is pulled and I can just keep up by pulling a bit here and there, but I was looking
for a natural way to prevent them from coming back.
Vinegar, boiling water, etc would be used, if the weeds were still there, but they have been dug up or pulled.
I understand the Mulch suggestion, but I just had a Termite problem and I have been told to avoid wood around the house,
so I don't get warm fuzzy feelings thinking of spreading wood chips all around the house.
I have heard about corn gluten, but never tried it. It sounds like that may be a good option, so we can delay weeds coming back.
Ashing sounds interesting, but we already hauled away everything we pulled, so nothing left to burn.
I have had the house for six years now and depite all the pulling, the weeds do come back regularly and get out of hand quickly.
Keep the ideas coming, I can really use some help, I don't know squat about these things. I just keep pulling and thought, there must be
some way to prevent the weeds in the first place.