Hi!
I am not sure what exactly you are looking for in the way of entertainment. If you are looking for classes I would look in to your local recreation center. I took a mommy and me swim class with my son when he was one. We also took a mommy and me tumbling class. And we never attended, but I heard great things about kindermusik classes at the rec centers.
We started story time at our local library is great.
We go to Cabelas (or sometimes Bass Pro)to get out of the house. It's right down the street and my son loves to feed the koi and look at the aquarium.
Ridgmar Mall is about 20 minutes from Keller. They have a great indoor toddler playground. We can make a whole day of this..playground, lunch at the food court(sometimes we buy one, sometimes we bring one), go to the indoor fountains. Occasionally, I get really lucky, he falls asleep and I get some time to browse the mall. Go here in the morning, later in the afternoon the kids get bigger and rowdy.
And the Ft Worth Modern Art Museum is free on Wednesdays. You may want to double check what exhibits they have running before you go - they are not always kid friendly, depending on your comfort level. I have been pleasantly surprised that those visits have gone well. I think and hope my 3 year old is learning how to behave in a museum. Sometimes we bring snacks and go eat outside near the water for a break (you have to cut through the restaurant to get here, but the staff always lets us through). And he loves to hear the echoes in the sculpture out front! We have been doing this trip since he was about a year old.
Glenview Baptist church opens their indoor playground to the public on certain days of the week. Get there early, they fill up quick and may have to turn you away.http://www.glenviewchurch.org/apps/articles/default.asp?a...
The Botanical gardens is a favorite picnic spot. Lots of neat trails and a little play area. It's especially fun in late October when there is the monarch butterfly migration - butterflies are EVERYWHERE! When my guy was smaller I learned to bring the stroller. It never got used hiking out, but coming back to the car it sure did! It's a lot easier to push that stroller than hike with him on my hip!
We went to The US Treasury off 287 and did that that tour. In all honesty we could have just spent the day riding the shuttle bus from the check-in point to the tour facility and he would have been absolutely thrilled. It's free and close. He did get a little bored with the tour, but he liked the hands on exhibits we played with before and afterward.
The Ft Worth Zoo is half priced on Wednesdays. We always bring a picnic.
And admission to the Dallas Museum of Nature and Science costs $9 for adults, but toddlers are free. They have a terrific section just for children that includes water play, dress up, building and nature. But my son was just as fascinated with all the exhibits we saw throughout the museum. They have a dino dig that is especially nice, because it is inside.
Chuck E. Cheese can be a fun play date. We went to their website and got some great coupons.
Hope this helps!