LinkedIn. Yes, it’s professional Facebook but it makes my job a whole lot easier.
My iPhone. I’m sure an Android phone would work too, but it means I can do a huge amount of work when I’m nowhere near my desk or a PC.
Cloud based IT. I can now access my work database, all my files and all my notes from any PC, anywhere. Evernote particularly is a wonderful thing.
I’ll also throw in google docs, having 3 people writing the same document (in different locations) and being able to chat live on it was a huge step forward.
On a small project talking directly to the client rather than getting briefed by a project manager who’s already ‘interpreted’ their request. On large scale jobs the project managers tend to be a an absolute necessity.