A tip I would have to put down is to stay organized. An easy way for me to do this was by estimating how much I averaged per hour, then work that out to see how much that averaged out to be per minute. Take the over all time that you spend in a day looking for things that you misplaced. If you need to actually keep a log of every minute in a day and go back to add up the amount of time you spent looking for things, stayed on a useless phone call, etc. Assume that that is the amount of time that you spend every day doing this and do the math acordingly to see exactly how much time you waste in a year doing this and multiply that by what you avereraged as your worth per minute. If amazes you how much money you waste in a year.
Example: I have issues with misplacing things such as a pencil. So lets say that I average 10.00 an hour as my hourly worth (this is easier to do if you actually work a job that gives you a pay salery) so that means I average around .08 a minute. Lets say I spend 10 minutes a day looking for a pencil.
10 x .08= .80 a day for a 5 day work week = $4 a week which is $16 a month. This very conservative example shows that I have wasted $192 in a year.
NOw add in the times you repeatedly stop working on one job to answer phone calls, to pick up supplies that you ran out of, to check emails, etc. you end up wasting alot of time and money that could have been more productlively used.
Organize. Set up everything so that you know where it is, set up times to check email, times to return calls, etc. Organization= efficiency = productivity