You should never look directly at the sun, even during an eclipse, without proper eye protection. Doing so can cause serious and permanent eye damage.

Here are some reputable sources where you can purchase certified solar eclipse glasses:

* American Astronomical Society (AAS) website: They have a list of reputable vendors who sell eclipse glasses that meet the ISO 12312-2 international safety standard. You can find it here: [https://eclipse.aas.org/resources/solar-filters](https://eclipse.aas.org/resources/solar-filters)

* NASA website: They have a section on safe eclipse viewing and a list of recommended vendors. You can find it here: [https://eclipse2024.nasa.gov/safety](https://eclipse2024.nasa.gov/safety)

* Local science museums and planetariums: They often sell eclipse glasses that meet safety standards.

* Reputable online retailers: Look for sellers who specifically mention that their eclipse glasses meet the ISO 12312-2 standard.

Important things to keep in mind:

* Avoid homemade filters: Homemade filters, including sunglasses, are not safe for viewing the sun.

* Check for the ISO 12312-2 standard: Make sure the glasses you purchase have this certification printed on them.

* Inspect the glasses: Before using any eclipse glasses, inspect them for any scratches, holes, or damage.

Remember: Safety is paramount when viewing an eclipse. Don't take any chances with your eyesight. Only use certified solar eclipse glasses from reputable sources.