Do more exercises

After giving birth to my 2 girls, I got no time going to fitness center to do exercises. I am quite envy some of my friends still able to find time to attend yoga or aerobic classes during night time. Most of the time, after work and after meal time, I already very tire and no feel like going out, let alone attending those class. Hubby suggested why not buy the fitness equipment like treadmill or bike, so that I can do exercises as and when I like. Not a bad idea anyway, perhaps I should try it.