It is derech eretz when you see someone engaged in permissible work to say -
Tizlach melachtecha.
May you succeed at your work.
Mishna berura 347 :7.
Now may be a good time for a gem of Torah study.
www.GemsofTorah.com
Gems of Torah by Rabbi Moshe Goldberger. We can use these essential "Gems" interspersed throughout our day to add vital meaning and inspiration.