One idea for shopping/the tram could be the ergo & a granny trolley?! I have me a granny trolley & haven't used it in yonks but am thinking of dusting the cobwebs off it.
Genius! Of course That's the answer! Thank you.

I'm wondering now though - I liked the 4 wheeler better but maybe when hoisting onto the tram (that i can actually fit on) a 3 wheeler is easier. What do you clever folks think?