LRT — it was very painless; just make sure you have a valid email + access to that email during the process

got some postal stamps today too, just make sure you’re buying directly from the USPS’s site

if you feel like buying stamps and letters during lockdown, no worries i gotchu covered

get stamps here:
https://store.usps.com/ 

get “forever stamps”; which are stamps that will always be valid and worth .55 in postage costs

How do I send a letter?

Have no fear, the USPS has got you covered!

https://www.usps.com/ship/letters.htm

How many stamps do I use?

The USPS has got a price calculator available online:
https://postcalc.usps.com/?country=0&ccode=US&oz=94566&omil=False&dz=32148&dmil=False&mdt=4%2F13%2F2020&mdz=15%3A59&m=1

Also FYI, a normal letter (less than 4 pages; no small presents inside) is usually about .5 oz

Happy mailing!