as Contiknitter says- Amy's videos are really helpful for that (and many other things). I like her technique for tucking in the end for a few stitches. The first few stitches may feel wobbly or loose when starting a new yarn, but they even themselves out.
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did I say one project at a time?
And, I use the felted join most, because I work only with natural fibers (mainly wool), and it is the best join. No cutting, tying, weaving in later, etc.
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One of many knitting guys.
CONGRATULATIONS TO AMY AND SHELDON ON THE BIRTH OF THEIR DAUGHTER!