-push-ups (LOADS of variations that target different areas) : add weights to yourself to increase resistance
-pull-ups (buy a chin bar that hooks on the door facing) : put a chair infront of you & use it to assist (youtube it).. build from there until you can do without
-dips (between 2 chairs)
-sit ups : LOADS of variations : V-ups, side crunches etc (google the variations)
-static holds : planks, wall planks, leg holds etc etc LOADS of variations. google them
make a circuit of various bits all hitting different muscle groups so you can go straight into the next exercise
the obvious : go for a JOG!
it's absolute BASICS this though. i'm genuinely surprised anyone still asks this question these days when they've access to the internet. theres about 748454948448478484694757 home workouts on youtube & just as many home programs available. P90X (which is actually VERY effective if you put the work in. I know 2 cracking transformations of friends using this alone) etc