Sometimes interesting things are found when I’m on the computer at work, the library, or on my relative’s computer that I want back home.
I suppose I should carry a memory stick, but I don’t.
I used to use Yahoo Briefcase, but they dropped the feature. Now I mostly email things to myself as attachments.
If just a handful of image files I use Photobucket, but that’s no good on other file types.
If there’s a whole lot, I “back up” and “restore” with Mozy.com, but that’s not really attractive.
Depends, if both computers are physically close I’ll use a stick (for a lot of stuff, an external HD or several trips of the stick, I transferred my whole WoW folder using several trips of the stick one time, as I didn’t have a HD handy); if not, well, the last time I wasn’t able to transfer a file through gmail was… because gmail hadn’t been invented yet.
I carry a memory stick on my keyring - it means I always have it with me when I need it, and often my files are just too big for anything else. Oh, I also sometimes copy stuff onto my ipod - using it as a (very expensine!) portable hard drive
(the original tools for the job. it’s what they exist for. sftp is secure)
Timbuktu or Apple Remote Desktop
mount SMB or AFS volume on local desktop, drag file in.
email attachment
sendspace or rapidshare
Dictation. One computer speaks and the others listen through voice recognition. It’s rather calming, actually, and makes for a great meditation exercise at work. 6F 6D 20 6F 6D 20 6F 6D… much better than progress bars.
Dropbox to sync things like music, homework, or pictures between my multiple computers (home desktop, laptop, work computer, etc.), sftp, or smb/samba (windows file shares).
ftp to my office computer then ftp from it. My home network is so flaky and unpredictable that this is the surest way to move something from one to another.