I know the immediately previous owners of our place, and they did have a forwarding order, but even so the PO missed a lot of things and it took a couple of years before we stopped getting their mail. We still occasionally get their junk mail, which I just recycle.
We also get mail for three other names, one of which just started coming fairly recently. I pile it up and write "return to sender" on it whenever I'm going to the P.O. for some other reason. I don't make any special effort, but if I'm going anyway it's not a big deal.
For the stuff that's misdelivered, if it's within a block I hand deliver it. Anything else gets added to the pile that's going to the P.O. on my next trip.
We also get mail for three other names, one of which just started coming fairly recently. I pile it up and write "return to sender" on it whenever I'm going to the P.O. for some other reason. I don't make any special effort, but if I'm going anyway it's not a big deal.
For the stuff that's misdelivered, if it's within a block I hand deliver it. Anything else gets added to the pile that's going to the P.O. on my next trip.