I do both. I purposefully schedule myself time away from my house, away from my kids because it's nice to get to spend time with friends.
For my scheduled down-time, I do a lot with the mommy's group I am in, but it's not your typical mommy's group. We are a bunch of batsh*t crazy women. We do all sorts of things--playdates with kids, movies wiht just moms, couples nights, monthly dinners, bookclubs, stitch n b*tch, dancing, weekend getaways etc. Our annual Christmas party has involved a pole-dancing class, a party bus, a drunken sleepover, etc. The women in that group are completely different and crazy and I love each and everyone. I enjoy getting together and spending with them. It keeps me me and not just mom-me, if that makes sense.
My July schedule with the YUMS (young urban moms) includes a slip n slide party with the kids, a family cook-out, our monthly dinner and a book club.
When I am just at home and get some unexpected downtime, I like to read, knit, cross-stitch, take bubble baths, watch t.v., get on the Internet, or go to bed early. It just depends on the mood I am in at the time. Because Zac is on 2nd shift, I am the only person at home in the evening with the kids, so in addition to laundry, dishes, dinner, etc, I am in charge of bedtime, bathtime, the quick straighten up, etc. I usually get about 15-20 minutes to myself after Wesley finally goes up to bed (around 8:30) and when I finish up with some of the stuff around the house that I have put off because I was spending time with the kids.
Its nice to get downtime. But I always feel like I should be doing something better or more productive when I have downtine though, kwi,?