aw, I knew I would get a ton of good suggestions from all of you amazing ladies!

Gentlevegan - thanks for the list. Printing it right now!
Rincaro - I have danced with Lucas in the past but kind of forgot how fun it was. I did it last night and we had so much fun! He is starting to dance on his own...it's the cutest thing in the world! We loved it so much we did it again this morning!

Kreeli - Lucas has actually been a superstar at entertaining himself! He can get totally absorbed in his toys for about 30 minutes. We just finally put cabinet latches on the lower cupboards in the kitchen so now he can be in there while I am cooking or doing dishes, which he loves.
Vegiemom - I don't have a sling, but I have a baby bjorn. We haven't put him in that since he was probably 9 months old...I'm not sure he would still fit! where did you get your sling, and how did it work with a toddler? Lucas is probably about 25 pounds now, and very tall for his age.
skylark - we've been teaching Lucas simple signs, he can now do "more" and "all done"...he just finally caught on to those two last week! It's so cute!
bethanie - you always make me laugh!

Jinga & smedley - thanks for the ideas.
Zoebird - that's a good thought about taking babies outside in all weather. I let Lucas run around outside yesterday evening when it was sprinkling very lightly out. He had a great time. Except for all the piles of doggie doo we kept running into...grrrrr...darn non-bagger dog owners! I need to get Lucas some better cold weather gear. Fall has just sort of come crashing down on Seattle and we're not quite prepared!
The biggest challenge right now is adjusting to not having a car. I used to run tons of errands with Lucas, grocery shopping, post office, etc. and now it is much more difficult. I can walk to the grocery store but I can only buy what will fit in the basket under the stroller. I can take the bus, but when I get on/off the bus I have to carry my bag, the stroller, and Lucas...so...I guess everything is just more challenging right now. I still take walks and go places, but I think I have more time at home with him now and it is taking a little getting used to.
For all of you who have had little ones (or worked with them!), when do you think babies are old enough for playdough? My mom has a recipe for it so I could make it and not worry about all the chemicals in commercial playdough. The only thing I'm worried about is that Lucas is in the stage where EVERYTHING goes in the mouth. We tried giving him crayons and he just wanted to gnaw on them.