PH wrote:I'm not sure I'd be too bothered with a puncture kit on a 3 mile commute, if the tyres are kept inflated properly they're going to be pretty rare and two out of three are going to be within a mile of either home or work.
I probably wouldn't bother with it either. 3 miles isn't a huge distance to walk and chances are low that the OP would have to walk more than half of it.
Zimatrix: if it were me, specifically with regard to punctures, I would:
-Leave an extra 15 minutes or so early each day, and have a cup of tea if I got there early (at least for the first few weeks, so I knew what was the longest time it took me, how likely problems wer, etc.)
-Keep some inner tubes and a small pump (or check if there is pressurised air or a pump?) at work in case I had a puncture on the way, or discovered a problem at home time
-carry a bit of money (and a phone number) in case I needed to call a taxi when it really goes wrong and walking isn't an option (getting sick, major mechanical problem and something important at work, first thing, etc.)