I bought a Phil & Teds, but only when ds was 8 months and started refusing a sling. I didn't drive, so DD had to walk everywhere, and run for buses, and she had asthma as a toddler, so I decided that a good double buggy was a lifesaver, and it was. I sold it for almost as much as it cost once I'd finished with it.
I tried a buggy board first, but didn't get on with it at all. I found it a nightmare for going up curbs, and I am tall, so had to stoop to reach the handles of the buggy, even on their highest setting, which was not good for my back.
I don't think I really bought anything else apart from boy clothes (had all neutral for very early days but ds didn't fit in newborn clothes as he was 10lb at birth).
I used cloth nappies, and did buy a couple of new wraps, but that was more because I wanted to, rather than because I really needed them!