mulching next to a wood fence?

[habitat_gardener]

I'm looking for experienced mulchers who have done the whole yard!

We have 3 mulch mountains from tree trimmers and are in the process of mulching the whole yard, front and back! Before I got here, weeds were everywhere. We've cut back the weeds and raked up weed seeds ( I know, not necessary, but I wanted to do everything I could to keep the weeds back).

Now I'm wondering what the best approach is to mulching next to a wood fence. We have a new fence (2 weeks old) and an older fence (3 years old), where all the fence boards go all the way to ground level. I don't want to pile mulch next to the fence, but I don't want to be pulling weeds at the fence line all the time either. My plan is to put cardboard all the way to the fence line, then place bricks (we have a lot) an inch or two away from the fence, and place the mulch next to the bricks. I'd appreciate informed opinions on whether this is a good idea, as well as other ideas on preventing weeds along the fence line. This is an organic garden, so herbicides are not an option.