Gave it a full rest yesterday. The conventional "how often should I work out" advice is to train, at most, every other day; if you're a go-getter and want to work out on "off" days, it should be cross-training, and to fit the 7-day week, a full-rest day (no workout at all) is typically prescribed every 7th day. E.g. if your primary training routine is running, then on off days, you should swim, bike, or weight-lift - anything but more running. So the cycle looks like: train, crosstrain; train, crosstrain; train, crosstrain; rest; repeat.

So today for me is calisthenics session #3:
20 calf raises
20 squats
20 crunches (yarly) + 8 bicycle crunches each side
20 wall pushups (the 40"w entry nook of my bedroom is very handy for these)
(intermission)
20 calf raises (too easy really)
17 wall pushups
10 squats, intermission, another 10 squats
20 crunches + 8 bicycle crunches each side

I find if I'm breathing once per squat, I'm not breathing enough, so there needs to be a full breath in between. This suits me fine, it turns squats into a more flow-y yoga-like exercise.

Around the time I joined the gym, I started taking vitamins and omega-3 regularly again with my morning coffee.
1 Winn-Dixie "Centra-vite" adult multivitamin
2x1200mg flaxseed oil gelcaps (@540mg alpha-linolenic acid (ALA omega-3) +132mg linoleic acid (omega-6))
1x1000mg fish oil gelcap (300mg EPA+DHA)
That's 1.38g omega-3; at last check, ~3g/day is considered potentially dangerous as it may raise risks of hemorrhage.