The Medway Handyman wrote:
I used to buy Toolstation Glue Screws in a screw top tube for about a £1 a
tube. I found it ideal for my sort of work, because I only use a small
amount at a time & there is less waste. I carry standard cartridges on the
van for bigger jobs.

Why so much waste with standard carts though? I reckon at any time I've
usually got a cartridge of no-nails, one of decorating caulk, and one
of silicone, on the go at any time, with the nozzles kept sealed with a
2" nail. They can last many weeks between jobs, or even months
perfectly OK (maybe not silicone, though).

David