man, just start shockin the shit out of your musclez! whatever your doin...increase the intensity 10 FOLD with a lot of supersets or do some kind of bodyweight exercise in between each set, or something crazy, just really think and try to vary your workouts! -just be safe with wat your doing and don't over do it and injure yourself...it suks!
or...like danzik said start doin some negatives, either a few at the end of each set... or try a couple exercises where you are doing nothing but negatives(you gonna get sore from that).
also, i'm assuming that you don't have access to a gym, from wat i read?
start getting creative with your workouts...you know-like ROCKY style! there are plenty of things you can do and plenty of things you can utilize besides your actual weight set, think outside the box!
that will make your workouts a bit less- blah blah same-ole same-ole -as well!
it'll keep you motivated to keep workin hard and have'n fun at the same time!
also, see if you can find a partner(lifting), he/she will be there to push you and assist you in gettin those few more reps or keeping your intensity up, maybe those few more reps...or whatever...are whats gonna bring you a lil soreness again! but don't think of soreness as an indicator of progression so to speak, cause it will come and go!
good luck man!