While I do not have specific information about Perseco at 101 Nassau Park Blvd, Princeton, NJ, I can offer general tips for visiting a business:

1. **Check Hours**: Verify operating hours before your visit to avoid disappointment.

2. **Explore Offerings**: Familiarize yourself with the products or services offered by Perseco to make the most of your visit.

3. **Inquire About Specials**: Ask if there are any promotions or discounts available on your visit.

4. **Customer Feedback**: Look for reviews or testimonials online to gauge the quality of the service and products.

5. **Contact Information**: Keep the contact number handy in case you need to reach out for inquiries before or after your visit.

6. **Parking Availability**: Note the parking options to ensure a smooth arrival.

7. **Plan Your Visit**: If applicable, consider peak hours to avoid crowds.

Always check their official website or social media for the latest updates and information.