Don't put your own neck on the line. Always have more than one person count the deposits from events and then give them to you. Always have two signatures required on all checks to make sure that no one can accuse you of misappropriation.
Have monthly treasurer reports at all PTO meetings so everyone knows what is coming in and what is going out.

You can get a comprehensive guide for treasurers here. Order the Treasurer's toolkit. It should answer your questions and give you loads of ideas on good finanical controls to protect yourselves and your money. I think it costs bout $40, but it's money well spent.

We have a sheet where the cash box is signed for and then recounted and resigned for. We also have a "rule" that a board member must be present when money is being taken. This doesn't include things like our school store, or spirit wear because we can see a balance between inventory and cash in/out. Of course, and this is the sticky part, someone can steal the money if they want to. There is no doubt...but if you work for routine money deposits then you have more eyes on what is going on....d

Two people is a good idea always especially when counting large amounts of money. Set a rule - anything over $100 requires 2 people present. For our bake sale, popcorn day, etc. one person will count the money and turn it in to the treasurer who will again count it to verify. And if at all possible, have 2 people take deposits to bank if it is a large $$ amount.

We are newly formed and the President seems extremely worried that someone is going to steal our money. We were not voted into our positions because of lack of participation, we were the only ones to volunteer. Is there somewhere I can see what procedures should be for handling of incoming monies? Must 2 people always be present when money is involved? Any ideas on where to find Treasurer procedures?