Mine expires on the 24th. Should I renew it now or wait until the 23'd? I don't want it to lapse but I don't want to lose a few weeks either.
Do I just go to the store & buy it like a regular item?
Yep, just purchase it in the store like any other item. The system will tack on the time to your current membership- so it will add 12 months from the 24th.
The system also does this for upgrades- if you went from bronze to gold, your remaining "time value" at bronze would be prorated at the Gold level.
OK, for the blind and/or dumb

... Do you send a bill or can we pay by CC ?
Stay safe
You can pay by CC- just go to the store and select
Team Memberships to review all options.