free exercise

free exercise

While I realize the cheapest way of surviving is sitting still to not use uneccessary energy, I have wondered about this for a long time: do any of you have recommendations for exercise?

I do not have money for a gym membership, but would like to keep in shape. Most of us walk or run - that's the cardio for you, but what about your muscles?

Do you know about free resources on the net for muscle training?

Personally, I'd like to find exercises for my stomach other than sit ups (neck trouble). :) Any thoughts?
My Bog Garden

My Bog Garden

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Bugs!

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Seeds

Bulb identification

Bulb identification

Autumn’s Place

Autumn’s Place

Plant Identification Help Please

Plant Identification Help Please