Can it handle any weights on its own? Carrying stuff is definitely one important task that could be useful for lot of people.
Pick-and-place style problems are one of the earliest tried on our robot platform, Hello Stretch, which is why this project doesn't spend too much time on it. You may enjoy something like the OVMM project [0] which focuses entirely on open-vocabulary pick-and-place problems: "Pick up $A from $B and put it in $C".