I would like to achieve some tonage in all areas of my body and not just any specific area because I don't want to become too muscular in any area.

What kind of 3-day or weekly or whatever workout plan would you recommend for this? Also, I don't want to buy any expensive equipment. Exercises that are aerobic and slightly increase muscle mass are best.

Muscles I would like to work out:
Triceps, biceps, delts, lats, thighs (whatever that is...quads I think?) abs, pecs, etc. You get the idea I hope.
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i really hate it when people say swimming because it's an aerobic workout designed to increase muscular endurance, not to build muslce mass. the only way to actually gain mass is to lift weights and eat more. how big you get depends on how much you eat. bodybuilders are huge because they can take in about 7000+ calories a day. you don't have to worry about getting "bulky" unless you're eating somewhere in the same neighborhood.

anyways, i commend you on wanting a full body workout because that's the most efficient way to lose fat everywhere. there's no spot reducing for any body parts. i'd suggest a routine like this:

without weights:
1. push-up (chest, triceps, shoulders)
2. squat (legs) - go down all the way, because it's actually safer to do that rather than stopping at 90 degrees. reason being is that it uses more hamstrings and glutes to take the pressure off your knees.
3. pull-up (back, biceps) - you might need to go find a playground or park for this.

with dumbbells:
1. dumbbell bench press (same as push-up)
2. squats or lunges (any kind of leg pressing motion will do)
3. bent over rows (similar to pull-up)
4. romanian deadlift (focuses on hamstrings and lower back, two often neglected but practical muscle groups)

i'd lift one day, rest next day. if you want to do cardio, you can do it on some of your rest days.

Source(s):
i'm a first year med student, and a health nut.