Keith Miller puts it this way:

It has never ceased to amaze me that we Christians have developed a kind of selective vision which allows us to be deeply and sincerely involved in worship and church activities and yet almost totally pagan in the day in, day out guts of our business lives and never realize it.

Jesus did not say "Take up your cross and follow me to church on Sunday morning, then you can do whatever you like the rest of the week." Cross-bearing is a day-to-day activity for those who would follow Jesus.