Today, we went to the Sammamish Public Library for storytime; the library offers several storytimes throughout the week and the Thursday morning one is targeted for an audience between the ages of 12-24 months. Today the kids learned about the letters A, B, C and D and they learned to count up to 5. (Of course none of them are really counting or saying "A" is for Apple ~ only the parents :-) but the instructor assures us they are learning so we join in and it's a blast.)
We had been to the baby storytime before but this was our first time at the toddler storytime. Baby storytime was easy because babies are left to crawl around and most of the session is actually spent letting the babies explore the myriad of toys strewn about the floor for that exact purpose. Toddler storytime was an entirely different beast; the kids are expected to sit and listen to stories, to participate in song and dance, etc. This is great for 1 parent with 1 child, for 1 parent with twins it's a workout (I think I lost 5 lbs in half an hour) but it's totally worth it. If you're lucky enough to have someone to go with you and help so you each only have one kid then great. If you're not that lucky, don't let the fact that you'll be chasing around 2 kids and run the risk of being the only parent who never sat down :-) stop you from going, put on your best tank top (I made the mistake of wearing a turtleneck :-)) your kids will enjoy it, they will learn from it and you'll be glad you did it!
Storytimes are great free activities for kids, many libraries and bookstores offer storytimes check your local listings. Also, Pottery Barn Kids offers a weekly storytime at which the kids are given a little book club passport, every time they attend a storytime they get a stamp in their passport, after 5 stamps they get a free book. Check the Pottery Barn Kids website for other events, they regularly have children's entertainment which are always a lot of fun.
King County Library System
All for Kids Bookstore
Barnes & Noble