Easiest would be to just swap SD cards.
Cheapest, definitely. But the database rebuilding process is time-consuming and to go through that every time I put the 32Gb SD back in :shudder:
I don't know about you, but I never felt the need to keep a full podcast list on my portable device.
That's not what I do. I never -- or very, very rarely -- listen to podcasts more than once, but I tend to accrue them slightly faster than I listen to them, with the result that I have a backlog. So my PC has a folder of unheard podcasts on it, and my MP3 player gets loaded with the oldest few from that folder -- depending on available space -- which get deleted from the PC straight away and deleted from the MP3 player in due course, once played. I don't want to get to a position where I've emptied the playlist, so once I've listened to maybe 2/3 of the 10-20 podcasts on the player, I delete the listened-to ones to make space and copy a new batch to the end of the playlist.
Is that weird? I'm starting to think nobody else does this, or anything like it...
And since that's such a small number of items to keep track of, it's easy for me to just 'drag and drop' without getting too fancy about it.
Mostly, that relies on playback being acceptable if the order isn't an issue or if the player's very good about playing things back in the order delivered. My Zen wouldn't do that -- it always tried to sort things by artist -- and while I think the Clip might be better at handling things in the order written to disk, I'd rather take control, if possible.
I'm currently experimenting with Mediamonkey. It will export an m3u playlist directly to the player that I then have to hand-edit to remove the drive letter from each line, but it might do most of what I want, one way or another. (I just have to wait 20 minutes, while the media's refreshed, to find out!)
This is so blasted complicated that I am beginning to think that it IS me that's weird, here.