May 4, 2007
The Eruv permits carrying for items that are allowed to be used on Shabbos. Therefore an umbrella, which is not allowed to be used on Shabbos due to it's creating an Ohel, (tent) cannot be carried. This Halacha applies to any item that one cannot use on Shabbos. If one has even food that for some reason cannot be used on Shabbos, i.e. a can that cannot be opened, something with writing on it that cannot be removed etc.Putting trash out for pickup later in the week would be a problem of handling Muktze as well as Hachana (preparation for the week) and is not allowed.

April 6, 2007
One is not allowed to carry in an area with a kosher Eruv items that would be needed for after Shabbos, as this would be a violation of Hachana, preparing from Shabbos to a weekday.. This would include carrying keys with a car key on Shabbos to Shul, which in any case would be Muktze, as well as excess of an item not needed for Shabbos. Therefore a person can take on Shabbos the amount of Pampers that may be needed for their child, but not an excessive amount, as this would be carrying without Shabbos need. A person can carry to Shul their Siddur etc. but not an abundance of Sefarim not needed for Shabbos.

March 16, 2007
The purpose of an Eruv is to bind a community together when the Halacha permits to enhance one's Shabbos. This was very necessary often to obtain well water from the town center as well as to carry one's Cholent that was placed in the bakers oven Erev Shabbos on Shabbos to each persons home. The Mishna Brura cautions us that even a kosher Eruv is only allowed to be used when it is needed for Shabbos. Having a kosher Eruv is a blessing for the community when used appropriately.