Try to never say 'yes' on the phone; instead, say, 'I'll get back to you.' When you're actually speaking to someone, the desire to be accommodating is very strong, and can lead you to say 'yes' without enough consideration.

When accepting a responsibility, imagine that it's something that you'll have to do next week. That way you don't agree to something just because it seems so far off that it doesn't seem onerous.

Take care of difficult calls or emails as quickly as possible. Procrastinating just makes it harder; getting them done gives a big boost of relieved energy.

Gretchen Rubin Quotes