You have probably experienced waking up in the morning, remembering only a few fragments of the dreams you had that night. By asking yourself questions relating to the fragments that you are able to remember and possible dream content, you might be able to remember more of your dreams from that night. I have put together a list of general questions that you can use to help you remember your dreams better. You are of course free to add your own questions, and use the ones that are relevant to whatever you already remember.
Were any colors or sound prominent?
What were my emotions?
Was I alone?
If someone was with me, then who? Were they familiar to me, or strangers?
Was I indoors or outdoors?
If I was outdoors, what season was it, and what was the weather like?
Was I in a town or a city, in a rural area, or out in nature?
If I was indoors, was I inside a home or in a public building?
What kind of room was I in?
What time of day was it?
Was the dream about everyday life, or was the setting unusual?
Was it a recurring dream?
Was I lucid?
If you are keeping a dream journal already (you should!), you can set up reminder questions related to your dream signs. Those might help you if you are not able to remember anything when you get up in the morning.
Go through these questions as soon as you are able to when you find yourself only able to remember a little, preferably before you are even out of bed.