Your good wishes come in all shapes and sizes. Some folks choose to send individual cards. Some fill a Priority Mail flat rate box, and others send a batch in a large envelope. Here's a helpful tip to get started.
According to current rates and rules, did you know that an envelope has to ship Priority Mail as soon as it goes over 13 ounces?
If you keep your batches below 13 ounces, First Class prices are the way to go. If you are over 13 oz. you might do well to see if what you're sending will fit into a Priority Mail Flat Rate envelope for $4.90.
If you know the weight (with the packaging of course) you can calculate the best method. Here are some examples: a 12 oz. package ships for $2.75 First Class, a 13 oz. package ships for $2.92 First Class, and a 14 oz. package ships for $4.90 using a flat rate Priority Mail envelope or $5.05 using a regular Priority Envelope. When you're up to 18 oz., the cost is still $4.90 for the flat rate Priority Mail envelope or $5.95 using regular Priority Mail.
All calculations take into consideration the 'from' and 'to' zip codes so yours may vary a little but the rule of thumb remains: once the weight exceeds 13 oz., a Flat Rate envelope is likely your best bet. Flat Rate Priority Mail envelopes and boxes are free from the Post Office.
Do your USPS calculations online,
Click here to try it today... 
