Straps - a significant benefit!
For far too long I believed what I'd read ... that a strap wasn't necessary sitting down, especially on something as small as a ukulele. I tried for months to balance my five-string banjo on my lap, like they showed in the books, but the thing was always tipping over and making my arm ache. In desperation I fitted an old piece of webbing
"to see if it would make a difference" and the results were like a whole new instrument
So I tried a similar solution on a ukulele and my whole style "loosened up" and I can now play for hours with no discomfort ... still haven't figured out how to fit a strap successfully to a balalaika
I found some small-size strap buttons on eBay and fitted one to every wooden body, fastening the other end of the strap to the top of the neck by the tuners, a significantly beneficial upgrade
At first I moved one strap between several instruments ... the novelty of that arrangement soon faded. I then purchased a length of decorative cord, as used for curtain ties or dressing gowns, from a local haberdashery and fashioned a strap for each instrument, with a loop at one end for the button and a tie-off arrangement at the other. The light weight of the average ukulele means that even a relatively thin cord is not uncomfortable around the neck, especially if tucked under a shirt collar.
The "neck-tie and hook" style straps only work well on a body with a "waist", not really any good for a pineapple or a banjolele.