Astro File Manager
Astro File Manager is an app that helps you not only manage what you have on your Android, but it can help you discover files and folders you didn't know you had. I'd been hearing how great this app was and how I would need a file manager if I wanted to upload stuff to Dropbox from my Android phone, so I decided I'd give it a try. As with other file managers, Astro lets you view files and folders both on your phone and your SD card; it also includes features of backing up your apps, sending files as attachments, and even manage running programs in the background.
Trying it out, I noticed that the interface is similar to the My Files icon, but there are some nice customizations such as either viewing folders in list or icon view. I did immediately find folders for apps that I had deleted in the hopes of speeding my phone back up to before, well, I downloaded a bunch of stuff. For me, opening Astro the first time led me to the stuff that was on my SD card; I was able to not only open these folders to see what was in them, but I was able to delete them. Removing files using Astro is a bit of a learning curve, as it took a bit to figure it out and of course, I had to make sure that what I was deleting wasn't something I would be needing. The easiest way I found was to long tap on the folder you want deleted; tap Edit, and then tap Delete. You'll get the obligatory, "are you sure?" message and once you've said yes, the folder is gone.
Not only was I surprised at how many latent folders that I had, but also pictures as well. It took some time, but I was able to clear out my phone of unwanted and unneeded files.
Does It Work?
I'll admit that I didn't think using this app would make a difference on my phone, but wow! After I removed the unneeded folders, I was surprised at the pace of phone; the slowness of it was making me regret the purchase, but now that I know there are probably latent items still hanging around, I'm back to liking it again. At least until my phone's upgrade.
It's definitely an app to look into if you have a phone that doesn't have the latest Android OS (2.1 and up), as Astro is available for those users of 1.5 and up.
If you want to give Astro File Manager a try for removing your items, you can find both the free, paid, server, and bluetooth editions at the Android Market.