How do you all clean your meth pipe?

I usually don't for a fair while then just buy a fresh one but ever in the past I have, i've either broken it or did a shit house job. Considering letting it sit in bleach for half an hour then washing it out?

Also, How much should I be spending and from where to get good 0.000 scales more measuring out powder and salts? I bought like 20/30$ jewllery scales from ebay and although they work fine, anything lower than 0.015 (0-15mg's) --wel.. idk if they are that accurate.

Any recommendations? on both questions?


Cheers