(Paraphrased from the book Adventures In Prayer by Catherine Marshall)
When bringing our prayer requests to the Lord, write them on pieces of paper. Ask outright what the request is. Pray over the pieces of paper, asking Jesus' mind on them, sifting out anything superficial or selfish until we have reached the kernel of the Spirit's hopes and dreams for this particular person or wish. Then, insert each piece between the pages of your favorite Bible, even specifically in between the pages of your favorite texts - Signifying that you are leaving them completely in God's care & keeping.
It is wonderful to go back sometime in the future and find these slips of paper & see how the Lord had blessed and answered each prayer.
(I actually did this in 1990 when Andrew and I had broken up while we were dating. I was so broken hearted. I knew he was the one for me so why did God allow him to dump me?! We were broken up for a year...After making myself sick with doubt, worry and heartache during that time, I followed these steps and completely left it up to God. A few years later after we were married, I discovered that Bible and the pieces of paper I had placed there...21 years of marriage later, I see how God was always in charge...I just had to let Him do what He needed to!)