Many punctures on my 18" wheels Strida I have a Strida with 18" wheels. Unfortunately the places I cycle seem to have lots of glass and I get a new puncture almost every week. I commute in London, so this is really unavoidable. The tires I have are not cheap, but they don’t have thick treads. Its hard to find much else for this wheel size. I do keep a close eye on my air pressure, and anyway, I'm digging shards of glass out the tires each time, so its not a pinch puncture. 

Does anyone else have a Strida? Do you get lots of punctures and is there any solution?

EDIT; A couple of things I should have added;
This is a strida,


Unfortunately you cannot do anything funky with weight distribution on a strida, you cannot even stand on the peddles. The way its balanced only works if you keep your bum on the seat. 

The size 18 wheels are only just small enough to fit, so I cannot fit any tire wider than 35-355 etrto size (1.35).

I may try the brush suggestion if I can work out how to fix it on. I will report back on the results.
That is an unusual tire size, and it's true you don't have a lot of options. 


As Ross points out, Schwalbe does make the Marathon tire (which is very robust) in that size.
You could keep your current tires and put some tire-liner strips inside them. You'd need to cut them to fit.
You could add sealant to your innertubes (you might need to swap tubes). This won't prevent the punctures, it would just mean they're less trouble.


Good luck.