Maintain your bikes and buy good components.
A good few miles this winter – maybe a thousand? maybe more? A set of brake pads at the puffer – thats it for replacements.
Oh course, silly me, I'm just buying spares for the hell of it. Deore cassettes, deore steel middle chainrings, sram p970 chains. Utter shite the lot of it.
TJ Ive also ridden the pffer solo a few times, and as i know you're a 'sweaty sock' I'll assume your local riding would possibley be in similar soil conditions. Good for you only needing such limited replacements, hwoever as it has been pointed out , not all mud is created equal.