Hey there! What was the brand of the portable high-chair you got? I can't find the post, but I remember you saying that you really liked it.
It was the Inglesina table hook on chair. super easy to use and very comfortable but hard base for LO, so he doesn't "slouch" down....
I personally purchased mine at albeebaby.com but it doesn't appear to be on sale anymore, but they still do have a 15% off coupon .... here's the link:
enjoy shopping! )