Monthly Archives: January 2012

Stuff I’m reading (weekly)

Posted from Diigo. The rest of my favorite links are here.

Multicast filtering on UW wireless networks?

Sitting with an idle laptop on a UW wireless network here at the Evans School, I typically see a constant 40-50kb/sec of traffic flowing into my machine.  At first I thought it was somebody attempting to hack or DDOS my laptop, but digging into the network packets with LittleSnitch showed me that all of this traffic was due to mDNS (Bonjour) broadcast traffic from other Apple machines on the network.

This seems like a huge waste of bandwidth and battery life to allow these network broadcasts.  Apparently other university IT administrators agree; Princeton University filters mDNS traffic from its wireless networks.  It would be nice to see UWIT do the same.

WSDOT traffic data: missing in action

With the recent start of tolling on SR-520 here in Seattle, the public’s attention is suddenly on traffic volumes on 520 and I-90.  So, this morning, I went over to the WSDOT website to see if I could find a simple listing of traffic volumes for the past few weeks.  Nothing, just a few random numbers sprinkled in their press releases.

Obviously, WSDOT is collecting this data.  It’s ridiculous that it’s not being published in formats that would make it easy to read and analyze.  What a huge open government data fail.

Stuff I’m reading (weekly)

Posted from Diigo. The rest of my favorite links are here.

Managing money for social change agents

I’m hardly a financial wiz, nor am I fabulously wealthy.  But I’ve managed to do a reasonably decent job of saving and managing money over 15 years as an underpaid social change activist.  Here’s some big-picture advice:

1) Live beneath your means, even if you’re not making a lot of money.  If expenses > income, you are screwed.

2) Have a credit card. Use it. Pay it off every month. Never, never, never run a balance. This helps you build a credit history, which will matter when you want to buy a home.

3) Start saving. Compound interest is your friend. But if you’re not-so-young, start saving anyway.  15% of your income is a good, aggressive target.

4) First savings priority: an emergency fund with 6-9 months’ living expenses. Keep it in cash or a money-market fund. This is your “oh no, I just lost my job” fund, or the “gosh, that was an unexpected car repair bill” fund.

5) Next priority: retirement. Take advantage of any 401k or 403b matching that your employer offers–that’s free money. Saving is easier when it comes directly out of your paycheck and you never get the chance to spend it.  Invest in low-cost index funds or ETFs. David Swensen’s “Unconventional Success” is a fantastic guide to asset allocation that will help you avoid the traps of the mutual fund industry.