I had lines/exchanges and and a painful autolet finger pricker to use on the 2 minute bm test strips.. ah, those were the days..! When I got my first Novopen you had to pay for pen needles, so I only changed them with a new cartridge, and lancets only get changed these days with a new gadget purchase.. so every 3 years or so?! quite normal I think for an old salt..) and as for DAVID, I’ve been doing it for years!! The pump is my friend for life now (I hope) or until I move up the transplant list?!