I'd go with Hoser - especially if you haven't done cleanses before. When I want a serious at home cleanse to kick myself out of bad ibs/colitis spells, I go raw for two weeks - just raw fruits, nuts, seeds and vegetables in reasonable portions in line with my calorie needs/limits. Ruffage is like scrubbing bubbles in my digestive system.
If I'm really uncomfortable, I'll drink an organic apple cider vinegar cocktail (big glass of water and a few tablespoons of ACV) three times a day with that diet. I will also double my water intake during this cleanse and maybe fork over a little cash for the Whole Foods cleanser kit (mostly fiber pills and milk thistle really ) and add a good probiotic blend. Together those two shouldn't cost you more than $20. Sometimes I'll take an herbal laxative tea once a day along with it all. I try to cut out coffee and alcohol entirely but I have never found a vodka/seltzer/lime cocktail once a week to derail my cleansing.
When you do such cleanes be careful about having routine bathroom access since you are going to to need it, know that your tummy will make louder sounds sometimes, and soften your physical exertion accordingly.
I started one of these yesterday actually. I'll warn you that caffeine headaches are a bummer for the first three days if you are a 3 cup per day coffee junkie like me.