This not so easy inside Premiere. You can do it using sub-clips, but I find it fiddly and tedious.
My DV workflow starts by capturing using Scenalyzer Live (
with datacode scene detect to chop up the incoming stream into camera clips. I name each capture session by a reference to the source tape and use the facility to tag filenames with source date and time.
I then go through the captured clips inside Scenalyzer and allocate each to a folder appropriate to its content, and delete any rubbish (either whole clips, or by trimming existing clips).
This gives me a structured set of clips in folders, each with date/time and source tape in the filename.
If ever there is a problem with a particular clip, it is very easy to recapture exactly using Scenalyzer with scene detect.
Now, in Premiere, I import each folder in turn, which automatically creates a bin of the same name, thus retaining the mental link between clips in Premiere and clips on the disk and the subject matter.
In some cases, it is then helpful to edit the contents of each bin into a separate sequence for that topic, maybe using material from more-general bins for cutaways etc. In other cases, an alternative approach may be better.
Sadly, if you start with very long clips containing mixed material, you will not find life so easy afterwards.
