Scrabbler, sorry if this is common knowledge as I'm new here, but what did you do when you semi-retired? Did you cut back on hours at your current job or did you go in a new direction completely?
After I paid off the mortgage in 1998, I was awash in money because one biweekly (full-time) paycheck more than covered my monthly expenses. I was also becoming more miserable at my (full-time) job, a misery which increased when my company in May of 2001 moved from lower Manhattan to Jersey City, New Jersey. This lengthened an already barely tolerable commute.
This relocation had been announced in 1999 so my depressioin at this commute only worsened. In early 2001, before and after our relocation, I was in negotiations to switch to a part-time, mostly telecommuting arrangement which enabled me to work from home most of the time while making the trip from my home on Long Island to NJ only one day a week. The kind of work I did, mainly computer programming, lent itself to telecommuting.
In anticipation of this big change, I was lining up my volunteer work with local schools and resurrecting another evening hobby I had not been able to do for 13 years because I was just too damned tired after coming home from work.
Living on a paycheck which was about 47% lower (before taxes) and 40% lower (after taxes) was not a problem, as I was still able to add to my savings and retain medical insurance and some other prorated benefits. But in 2003, the company ended its open-ended telecommuting but allowed me to continue working part-time. I just had to put in all my hours at the office, bringing back the horrors of more frequent commuting to NJ (3 days a week). I knew this would eventually be my undoing.
In 2007, after nearly 4 years of that, I asked to have my weekly hours further reduced, from 20 to 12. This eliminated one weekly trip to NJ and got me home an hour earlier on the remaining two days. I did this in an effort to stop (or slow) the burnout which had returned after the telecommuting had ended.
But that lasted for only 17 months. I knew even in 2007 that I was probably going to leave the company by the end of 2008. The only way I could put an end to the bad commute was to leave for good. As you can see in my signature line, I cashed out my company stock which had continued to grow whether I was working P/T or F/T, took the money, invested it in a bond fund, and easily live off the interest.
I still do my volunteer work and evening hobby, both of which made easier and have been expanded due to not working any more.
But for me, eliminating something awful (the commute) was more important than finding something positive to do. However, the aforementioned positive things I can now do are fun.