If you want jodhpur boots to just muck around in and don't care how you look, you might want to consider muckers. They're comfy to wear around the stables too, and I bought them as my first pair of riding boots (and only, currently) because they're just /so/ comfy.
I bought these
, and they're safe to ride in as well as not rubbing anywhere, being half welly (i.e. Waterproof up to your ankles), and they're fleece-lined too.
There's bound to be something like that where you are :) Splasher/mucker/mucking out boots.