My ds will make his first WDW car trip down in April and was wondering on any advice with a 10 month old.(my dd is 11 and already a WDW buff).Yes we are driving 18 hours :eek:

My advice, as someone who has travelled with young kids in WDW before: Bring your patience and sense of humor. You should have a wonderful time, but you may have to work at it!
Remember that the little one will need more breaks than the rest, and will most likely hit sensory overload before everyone else in your group. Try to find the quiet, out of the way places to try and beat the crowds and commotion. Also, each park has a baby center. This is also a good place for a quiet escape from too much Disney magic.
Have fun and good luck.;)

Other than taking it slow, I also recommend letting DS out of the stroller for some movement (my DD was walking by then, but this would apply to crawling too.) We go to DLR, so we used to find an indoor attraction that I could let DD crawl / walk a bit to burn off some energy (she has it to burn!)