Topic: Practicing without a guitar
im travelling round the world for 6 months soon and cant wait however due to the fact i will be on the move a lot im being forced to leaving the guitar at home. Im relatively new (bout 4 to 6 months) at it and i know that even if i miss a day of practice everything seems so much harder and my big dread is returning home and having to start all over again so im looking for any tips you guys have on keeping hand muscles strong (i know about the tennis ball theory) and keeping them hard worked calluses. also i want to practice chord changes aswell as they seem to suffer the most when im without her but cant think of how. any help would be greatly appreciated.
cheers all