I just don't feel like exercising . Exercise can relieve sluggish feelings and a general lack of energy. Something as easy as a brisk walk may do the trick. I've never been the athletic type. Activities like walking, cycling, or swimming require no special athletic ability, making fitness possible even for outright klutzes.
Exercise is boring.
It can be, but it doesn't have to be. Vary your exercise routine by bicycling one day, swimming the next, and walking the third day. Make exercise a social event by exercising with friends or your spouse. Exercise to your favorite kind of music to overcome any monotony. You could also explore local parks by foot or bike, or try a new route every so often.