Originally Posted by
contango
Any decent pannier will clip on and off easily enough. You can already get a rack that clips to the seatpost and takes a trunk bag.
If you want something that's strong enough to take any decent weight and sturdy enough to keep panniers out of the wheels you'll need to attach it to the bike. My pannier rack attaches with four bolts but even that's more of a faff than I'd be interested in to keep taking it off and putting it on, so I just leave it on.
Yep.
And Carradice offers a small rack to hold their saddle/trunk bags. I was a bit sceptical about those racks for years, then Rowan bought a pair for us, and I'm impressed. It's bigger than I thought it would be ... but small at the same time.
If a person is commuting to work one day, or wants to do a quick run to the shops, a Nelson Longflap on one of these racks would work.