I did a little Pinterest research to see how other people had tackled the job. I read a few times to use a primer first and to be patient and let the paint dry for 24 hours before painting another coat.
The first thing I did was to take the playhouse apart. It was really simple, just a few screws held it together.
I cleaned every nook and cranny really well, the paint won't adhere to it if it's dirty.
My goal was to make it look like a little beachy cottage. I went with white/ teal/ light gray as my color scheme.