Why not take your bike, instead of the car?
In the car it can be easier, more convenient, quicker, stops you getting wet...... But think of how much money you could save on fuel to spend on other things.
Not only this but jumping on your bike or stretching your legs on a quick walk to the shop all adds up to your 30 mins a day of recommended activity.
And you never know it might start to make you feel better, have more energy, be alert and ready to go.