Yes..I'm a total dork and I write on my machines. It's the only way I can remember what dial does what.
It's also in case a Gremlin tries to steal my machine from me.
Concerning affiliate links... In some cases, I will be compensated if you decide to purchase a product if you use the provided link. It helps me out, and I appreciate you for clicking over. I will never recommend products / services / patterns I don't believe in and use myself. Ever.