Dedication is key! Every morning, before you even get out of the bed, regardless of what you have planned for the day, take 10 minutes to think about your dreams and write them down! Even if for 10 straight minutes you don't remember the smallest thing write down something-- any reoccuring thoughts or themes you think might have been associated with a dream. Or simpy "I dont quite remember." Also, throughtout the day, try to refresh your memories of the dream/dreams from that morning.

This drills the idea of " I want to remember my dreams!" into the subconscious. It helps a lot. Good luck!