How to be frugal with cell phones

Is you cell phone bill out of control? We both pay less than $40 for out unlimited cell phone plan, we have unlimited data and text messaging.

Vintage phones mentioned:

Motorola startac https://en.wikipedia.org/wiki/Motorola_StarTAC

LG flip phone https://www.cnet.com/reviews/lg-vx4400-verizon-review/

Nokia 5160 https://nokiamuseuminfo.wordpress.com/1998/11/05/nokia-5160/

Nokia 8210 https://en.wikipedia.org/wiki/Nokia_8210

Phone plans mentioned:

Visible https://www.visible.com

Pure talk https://www.puretalkusa.com

Recommended budgeting software:

Mint https://mint.intuit.com

YNAB https://www.youneedabudget.com

Every dollar https://www.everydollar.com/