I bought a cheap (£6.99) shopping trolley about ten years ago, from a cheap sells-everything shop, thinking well I don't want to use it but if I need it sometimes ...
18 months ago I accidentally dropped it when it was heavily loaded with compost, and the handle cracked badly so it had to be thrown out. Mind you I kept the bag as that was still in good condition.
About four years after I'd got it, I was trundling it along, heavily loaded with bottles of wine, butter and bananas, when a bit of it caught on a broken bit of pavement and a wheel fell off. There was no way I would ever have got home without it, so I pushed the wheel back on and proceeded with caution ...
Never gave me a day's trouble after that until it was dropped with the compost on it.
So I went back to the same shop and bought the most similar model, this one cost me £8.99. Great for when I have to, or are likely to have to, carry weighty things on foot/public transport. 'Big' shop, library, garden centre, street market etc. A couple of bungee cords make it even more versatile - add bulky but lightweight items to your load.