There's multiple programs that you can use to try to upload photos to Flickr.
My traditional photo uploader, Flickr Uploadr (sic) started going too slow so I had to start
using a backup, picking JUploader. decided to upload photos using Uploader
while Flickr Uploadr completed the upload already queued.. However. it soon meant
starting with another day's Seattle trip photos thus another set. This would
have been okay except both programs when uploading photos
sometimes fail to properly put them in a set, and the feature that
lets you search for photos not in a set isn't working right for me at the moment, so
I've had to upload photos by day into a set and they take out the
ones that don't belong in a set one by one. Even so I'm bound to miss a few so hopefully I can use the "not in set" function again sooner than later.