yoko,
You poor thing! Have to travel up and down to sort out baby Jordan. It is only your second time out with him alone, so its still trial and error here and there. I think you coped pretty well considering he has just had surgery. He has every right to be cranky. Remember the mummy in the baby room who came up to you to tell you your son must have colic and should be held upwards??? I know she was trying to be helpful, but personally I hate busy bodies who think they know better. I was silently cursing under my breath. Had that been me in your shoes I would be very upset. Its like saying you don't know how to take care of your own baby and an outsider has to tell you that they know best!
What are you going to do with your current stroller if you are getting another one?
I tried the Jumperoo with Luis but he didn't like it and he did slip under as he isn't big enough, then I saw another baby try it and he was also 4mths, however he looked like he loved it and sat really well. So, you got to try it out with your baby and look see.
I wouldn't even consider the bumbo seat because you can't utilse it for long and babies grow very fast so to me it'll be a white elephant.
Blue patches,
They are Mongolian bruises, which are very very common in asian babies, it will disappear as the baby grows and has NOTHING to do with the mother's diet or myths such as decorating the house. All my son have it on their bottoms. The older boy's have all disappeared.