What I do is place the wet print on my driveway and make a few careful passes over it with my car. This flattens the print down nicely.
Be careful to avoid doing "burn outs" because this will remove all the "burning in" that you did in the darkroom.
Unfortunately with Bergger paper I have to leave the car on it overnight.
All the above posts will do the job, just pick one and it'll work for you.
And welcome to APUG.