Give Those Muscles A Rest

Back in the groove, sort of, with my exercising. I was such a lazy butt all winter and with this bitter cold being no inducement to be out and about, I'm in flabby not-so-great shape ... HOWEVER ... I've been working out a lot in the last two weeks and did a really heavy session yesterday, including lifting weights. I'm so glad to be exercising again, I feel like jumping in again today, but everyone tells you to give your muscles a rest the day after heavy lifting. So I'm officially off the hook. Can't I do a little yoga though? Please?