bike maintenance - punctures
With thornproof tubes and a Kevlar reinforced tyre with a trekking tread you shouldn’t get too many.
Still there are some vicious thorns out there, usually off the road, where a policy of avoidance is required. Identify the plant and steer clear. And pull them nasties out immediately, before they work their way through the tread.
26” thornproof tubes are common in the bike and toy shops in small towns, you can find them even in Kmarts. Even 16” for the trailer. The 700c size are usually only in a bikeshop.