How to Use a Marine GPS. Marine GPS is a necessity on the water since there are no roads, signals, or light at night to guide the boater from one location to the other.Without GPS navigation, it would be quite difficult for the recreational boater to get from point A to point B without any issues.he GPS devices with internal antennas are used on smaller boats with no top or cover since the receiver is built into the unit and it needs direct line of site to the satellites providing the signal to the device. The second ones are the external antenna units.
Step 1: Toss Verified Receipts and ATM Slips. Nearly all of your financial papers can be divided into three categories: records that you need to keep only for the calendar year or less, papers that you need to save for seven years (the typical window during which your tax return may be audited), and papers that you should hang onto indefinitely.
Customers have as long as 18 months to dispute charges on their credit card bill. If you do not keep the credit card receipts from sales transactions, your business could be forced to return the money for the purchase to the customer's credit card company.axes. The Internal Revenue Service recommends that you keep any documentation of deductions and income for at least three years. Keeping credit card receipts is not mandatory as long as you have other documentation of the sale such as your deposit records from your merchant account or your cash register receipts.