Windows only: Free, open-source application Flickr Schedulr lets you set specific times you'd like to upload pictures to the popular photo-sharing site, Flickr.
Uploading high-quality images to sites like Flickr is a great way to share pics with friends and family, but it can also clog your upload tubes when you need a good Internet connection, and managing your uploads can be a pain, particularly if you back up a lot of images to Flickr.
When you first launch Flickr Schedulr, you'll need to give it access to your Flickr account. The application works in conjunction with the Windows Tasks Scheduler so that, whenever it's run, it'll start uploading the next batch of images in its queue. It could, for example, be set to upload a new picture every day at a specific time.
The application could be a bit easier to use, and it'd be nice if you didn't have to set it up with Tasks Scheduler (you can see more details on the app's homepage), but if you do a lot of uploading to Flickr, it could come in particularly handy. Flickr Schedulr is a free download, Windows only, requires .NET 2.0.