Hi,
Its the same as fitness under 60,
that means stop shopping
and start moving your butt

Dance for a song or two , one or two times a day
advanced fitness

step 1)
Stretch and Flex learn to stretch without hurting yourself no matter your fitness level,
stretch after waking up,
stretch before working out

Step 2)
Wiggle and dance for 7minutes (1-2songs) non stop
, and throw in some "lunges" and "squats" and "pushups"
skip the situps/crunches ... anything exercise thats too ouchy

its basically the
HICT HIGH-INTENSITY CIRCUIT TRAINING USING BODY WEIGHT: Maximum Results With Minimal Investment


super advancedgreat, now you can dance non stop for 2-3 songs, and do 30 pushups ... jumping jacks, squats, dips...
the advanced part,
work you way up to
100 pushup, 100 squats, 100 dips ...
super duper advancednow you're very fit athlete,
maybe now its shopping time?
break-dancing or gymnastics lessons?
Pull up bar for your doorframe?
Weight belt/vest/sandbag for more difficult pushups?
Rock climbing wall?
Body building equipment?
Most people don't stretch every morning,
don't dance every day,
and they suffer back/neck/arm pain,
foul mood,
sleep drunk, depend on coffee to wake ...
a little stretch and dance goes a long way to getting you going