Thessalonians5:17 tells us to "Pray without ceasing." I'll be the first to admit that I am terrible about this.
Now, this verse isn't necessarily saying that we must be in constant verbal and mental conversation with God because that just isn't possible. You can't hold two conversations at once, and if you can, well you are one of the few.
What God (the three in one-Father, Son, and Holy Spirit) wants is a relationship with us, to be the biggest part of our day, to be in conversation with us, and the one guiding us. This only comes through continual conversation.
Prayer is like our cell phones. If you are like me, my cell phone is always in my pocket, I'm constantly checking the time and new messages, and if I forget it at home I feel sort of naked. Prayer should be the same way- constantly checking in with God.
Prayer is like talking to a best friend too. I love that I can call up Nikki and tell her about my day, from the most insignificant trifles to the catastrophes. God wants to hear it all, and not just when you tuck yourself in at night and remember at the last minute to thank Him for your day, but continually without ceasing.
-A beautiful sunrise, or light filled clouds bring praises of his beauty.
-Children's smiles and laughter make me thank him for his creation.
-Ambulance sirens remind me to pray for the health and safety of others-family, friends and strangers.
But there is one strange little thing that just reminds me to talk to Him, to say "hi" and just talk. It may be silly, but squirrels remind me to pray.
As most people know, I am not a long distance runner, I was built for speed and savor the 100 meter dash. But here I was in a 4 mile race, my knees and shins and hips hurt, I was angry and humiliated to be in last place and I wasn't in any mood to smile. But then God sent a big grey squirrel to run directly in front of me and up a tree. It was like He was saying, "I know it hurts, but remember I Am still here."
I didn't experience immediate healing, or go on to run my fastest race ever, but I was humbled and happy to be running in His presence.
So what is it that reminds you to pray? If you don't have a "prayer trigger" pick something (I started by picking Ambulances) and pray that God would send you a reminder, a glimpse of His presence.