How a familiar smell can take you back into time

So I was looking out the window, watching the rain come down and take a deep breath and boy do I love the smell of rain and wet grass...I started to think and I said this before to my husband, on how a powerful scent can take you back to that exact moment. This smell reminds me of summerfest. The 3 day weekend conference full of youth seeking Gods presences, hanging out with friends and going to sleep late........ and that was it..something really simple but yet so powerful it stays in your mind, breaking night and having to walk to your room in the early morning and the smell of summer morning dew...I smile when i write this..it was simple times, I can feel, smell and see myself walking, smiling and also thinking its going to be a long day....but it was the most freedom i had...no parents, no curfew (well we did have curfew, we just broke them...yes i know..bad girl..)i had no worries, no responsibilities, at least for me...my only challenge was what I was going to wear to impress the boys(which young ladies..you DON'T NEED TO IMPRESS ANYONE!!that's another subject)..... Seems so ridiculous now yet so WOW i was so carefree...should of enjoyed it more.. This is why I say, don't know whats the rush with young people wanting to grow up so fast..Enjoy your tweens, and teens. Concentrate in school and pick a career...TRUST ME!!...but I'm going off the subject..i do that a lot when i write...That's  a little insight into my brain..its all over the place..i have a lot to say....but like i was saying.. the power of a scent. I have a few more..i will give you one more.. i cant describe the smell but when it does come crawling up my nose, it reminds me of one of my babysitters hallways...so random..i know..but again a very good memory...so now I want to hear from you.What scents takes you back or remind  you of something or someone?? comment below...cant wait to hear from you..