The weather is inspiring and trying plein-air painting is a great way to get outdoors. There are ways to make it easy...
Have a bag packed and ready to go at all times. First of all it must be light and easy to carry. Keep it simple. the more cumbersome and awkward it is the more reason there will be to leave it behind. A few brushes, a small palette, small coraplast boards and paper, a water bottle and container for water and you're ready. It's also nice to have a small sketchbook and pencil or pen. You're ready for wherever you find inspiration. There are always park benches but sometimes they're not to be found. Having a light portable camp chair in your car is a great way to go.
Another way to help you stay creative of course is to take a class or two to update your skills or learn a few new techniques.