ranging from 15k to 23k steps a day. Lots of lifting for dirt, mulch, grills, furniture and stones.
Lots of steps and lifting your still keeping in good shape from work.
Never liked those crunches the only crunches i like is when munching
I do like push ups and the dip bars those are very good and you can do the air walk for fun as well!
You could do a little workout might look funny at work depending on the items you have
e.g
Make sure its a decent weight but not too much.
1) Plant pot/sandbag over head press (2-3 sets 4-8 reps)
2) Lunges to the next area 2-4 sets 2-8 reps ( short distance, so can walk to the next task and the remaining distance to follow it up with your lunges e.g. 8 lunges until you reach the area)
3) Rock hammer curls use some rocks work your biceps can use 2 hands for bigger rocks
2-3 sets 4-8 reps
4) Rock swings make sure you hold it well or else it will fly
as it doesn't have a handle like a kettlebell,
you could use 1 hand for smaller rocks i guess.
2-3 sets 4- 8 reps
Just a thought could be more work than the work you already do though ?