Best to throw it away or keep it. Don't leave it there.
Humour
Try ptting it under your pillow. You never know the tooth fairy might visit!
You leave from New Bark town, go to cherrygrove. Then, go north. Violet City should be there. The gym is near the center of town....
After you beat the gym, you must leave, heal ur pokemon, then go back and talk to the leader and she should give you the badge
saffrons gym you can do it by beatng Giovanni in silph co. . tem roket will leave and u can face Sabrina
after you beat the viridian gym talk to him again and he'll leave and voila!! you get ur own gym
beat the other 7 gyms in kanto and talk to the 8th gym leader on cinnabar island. he will leave and go back to the gym
you should have to FALLOW Bianca to the Pokemon musical place then after you leave there is this annoying thing where Binanca and her dad talk.after that the gym leader comes settles the argument, then says that her gym is open right next to the amusment park. Have fun battling her!!!B-)
you have to defeat the 4th gym leader in lavaridge town. After you defeat her you leave the gym and your rival will give you the goggles.
to help at her older sisters gym
you see her when you leave the gym after beating chuck
When you defeat the 5th gym leader and when you leave the gym head to the left and a woman will give you the HM
Beat the Cianwood Gym leader, Chuck. Then a woman will apper when you leave the gym and give you the HM.
Gym equipment should be maintained often, maybe every week or so. Gym equipment should be trained with once a day at the very least. If you don't want to buy gym equipment, go to a local gym/fitness center.