You can say yours is better, but just don't tear down the other person's product. Although most convention attendees will be traveling on the company's dime, newcomers should watch their expenses. It's also important to be prepared for unforeseen circumstances. Most hotels require that guests leave a credit card number at the front desk for incidental expenses that will not be reimbursed by the company, she said. It can be humiliating to have to fumble for a credit card, only to realize you're over the credit limit.
Cash is handy for incidental expenses that pop up, for tipping and for spontaneous spending.
Typically, paid items include lodging, a per diem for meals if not included in the conference, and transportation costs. You can certainly entertain, though a lot less than you used to be able to do. Ethics rules also apply at conventions and trade shows, she explained. There are companies that will make you return any gift you receive from a client. Otherwise, you have to give it back or reimburse the client.