Spyritdragon

Okay, thanks :-). Small side question: I had a rather nasty splashdown earlier and a bit of my ship blew up. I ended my flight, only now i have half a dozen RCS-thrusters bobbing around sillily in my ocean. Can't use 'end flight' because they're not part of my ship anymore - is there a way to delete these without endangering unmanned rovers, landed spacecraft, sattelites and space-stations? I've looked around on the internet, but i couldn't find any sollution pertaining to stuff that's on the surface/in the sea. The 'maximum debris' makes me afraid it'll destroy stuff i don't want it to.

I've played the demo, and i just felt i HAD to have some way of recovering two kerbals in one ship, so i eventually managed to flip over the one-to-three divider from the demo and plug three command pods on there (demo only supplies a small single-man command pod). Both had something on top (parachutes) and i had a big launch system underneath. It took some time to make KSP realise what i wanted and quite a few tries to get it to actually put all three pods on correctly, but i just kept trying and once all three were attached they worked fine :-)

@Norcalairman Wow, thanks, ill try that . For some reason i never tried burning anywhere but prograde and retrograde when adjusting my orbit.

Okay, thanks for the information everyone :-). I've heard a whole lot about Mechjeb going around KSP, so i'll look into that.

Before i say anything, i'll say i do know about burning prograde and retrograde at apoapsis/periapsis. I can make a reasonably circular orbit. For the time being im also working in vanilla. What im wondering is, i've seen video's of people who have space stations in an almost exactly circular, 100 kilometer orbit, with less than .3 m/s in altitude change. Im wondering how this is done. As i come close to my circular orbit, my apoapsis and periapsis start to spin around my orbit, and any point in my orbit which i had already fixed at 100 kilometers deviates from it. Whenever i try to correct one part of my orbit back to 100 kilometers, another part of my orbit will deviate from it. I can manage to get my apoapsis and periapsis around the same altitude, but i never manage to put them at any even close to round number. How do i get these round-numbered orbits without having to put my kerbals in space for months/years? My main problem here is the not being able to control the altitudes of my final orbit, rather than being unable to perfectly circulising it.