Make sure you have some personal time during your day. Don't abuse this time. Use it to return calls or take a few minutes to take care of a personal matter. Also, make sure you get up and walk around a little bit every so often, to take a break and to stretch your legs. If you run or attend meetings, do everyone a favor and insist on an agenda.
Meetings can be a very big waste of time.
I know, because I used to observe that meetings that started at 10 a.m. or 11 a.m. always ended at lunchtime. Regardless of when a meeting begins, let everyone know what the objectives are, so they can come to the meeting prepared. Set a starting time and a completion time for each meeting. The last two columns have been educational for me and hopefully valuable for you as well. To sum up, there are some major pitfalls in time management you need to be aware of.