Well, with the encouragement from the lurker thread, I thought I'd post an aw and a thanks: as of 12/31/12, DH and I had a six figure increase in net worth during 2012. I largely thank MM for that. If I recall right, v posted last year that she kept a net worth spreadsheet and updated it monthly. I started the same thing, which led me to be a lot more conscious about spending, and in turn led to more dedicated saving. So, thanks MM!
I think the biggest tip for me was just getting organized. By tracking all of our accounts in one place, on a monthly basis, I was able to see and correct trends quickly. For example, I discovered that DH had turned off contributions to his retirement account in 2011 when we bought our house, and never turned them back on. By fixing that at the start of the year, we made good progress.
This was all done with watching spending and increasing savings? Did you have some stellar investments?
Nothing super stellar, but I started saving for retirement young (think 18) and both DH and I get great retirement matches from our employers. That meant I had a good amount in retirement already that could grow last year. We're also DINKs, with substantial salaries, so watching what we spend can make a big difference.