A great way to do double duty at the gym is to combine a couple of otherwise very different exercises into a single movement. Hanging leg raise to pull-up would be one example of a single gut-busting, lat-straining exercise.
Another really super great combo is the squat to shoulder press movement, otherwise known as a thruster (in crossfit lingo anyway - a key element to the “Fran” benchmark).
The thruster is, as I described, a single movement between squat and press. The exercise can really be done with any sort of weight - kettle bells, barbells, dumbbells, medicine ball - anything you can do a squat and shoulder press with.
Start with the weight positioned at shoulder level as though you are about to do a shoulder press. Instead, go down into a squat, back up and then do the shoulder press. Go immediately back to start - that’s a rep.
Try doing three sets of 8