If you start with a nicely honed razor you can go a year or more with just stropping and some refreshes. I use a Shapton 16K for refreshing and love it. Once your razor starts tugging a little, 5 full stokes on the Shapton and maybe 5 strokes on chromium and you're go to go.
I'm not a fan of the Nortons, but they will work and won't break the bank.
I'm not a fan of the Nortons, but they will work and won't break the bank.