310: 11-20

A person may carry a sewing needle that is whole to remove a splinter. If, however, its head or its point has been broken off, it may not be carried. If it is still in an incomplete state and its head has not been pierced, it may be carried.

All utensils that were set aside because of [an association with] a prohibited [activity] are forbidden to be carried. For example, it is forbidden [to move] a lamp that was kindled for the Sabbath, a candelabra upon which a lamp was placed, or a table on which money was lying.
[Moreover,] even if the candle is extinguished or if the money falls, [the prohibition remains intact]. Whenever an article is forbidden to be carried beyn hash'mashot [on Friday], it remains forbidden to be carried throughout the entire Sabbath, even though the factor that caused it to become forbidden is no longer present.

[The following rules apply to] a door that once had a hinge - though at present it does not have a hinge - which is prepared to close a yard, but which drags on the ground when it is opened and closed: If the door is attached to and hanging on the wall, it may be used to close the space and may be locked. If not, it may not be used to close the space. If the door is [suspended] above the ground, it may be used to close the space. The same rules apply to a [partition made from] brambles or a mat that drags on the floor.

The poskim disagree regarding kelim that are used very frequently, such as cutlery, plates, and cups. According to some, these kelim possess the same halakhic status as food and may thus be moved for no reason. Others maintain that they have the same status as kelim she-melakhtam le-heter, which may not be moved without a reason. Since muktzeh is itself a rabbinic law, the lenient position is the primary one. Le-khatḥila, though, since many poskim are inclined to be stringent, it is preferable to take their opinion into account and to avoid moving cutlery and dishes for no reason.

If there is a possibility that people will forget it is Shabbat and end up fixing the implement, the Sages forbid moving it. For example, if a leg falls off a chair or table, one may not move the item and prop it up on another piece of furniture, because someone might see it and decide to repair it. However, if the implement would be complicated to fix, or if it had already been used in this manner before Shabbat, there is no concern that he will forget and repair it on Shabbat, so it may be moved (SA 313:8; Rema 308:16; MB ad loc. 69; SSK 20:44).

Some items are sturdily assembled initially but loosen over time. If people are used to using these items in their loosened state, it is not prohibited to assemble or disassemble them. As noted, assembling implements loosely is not considered Boneh. Furthermore, since people are used to using them this way, we are not concerned that they will end up fixing them with nails or glue (see Rema 308:16; SA 313:6).

Brooms made of date branches and the like, which are used to sweep the ground, are considered utensils that are used for a permitted purpose, since sweeping is permitted on the Sabbath.
Bricks that remain after a building [was completed] are considered utensils that are used for a permitted purpose, for they are fit to recline upon,, as is obvious from the fact that they are filed and adjusted for this purpose. If, however, one collects them, [it is evident] that they have been set aside [for building], and it is forbidden to carry them.

Anyone who performs a [forbidden] labor - even if he has no need for the actual labor he performed - is liable for his deed.
What is implied? A person extinguished a lamp because he needed [to save] the oil or the wick from being destroyed or from burning or so that the earthenware reservoir of the lamp [that holds the oil] would not break. Since he had the intent of extinguishing the lamp, even though he did not do so for the [usual] purpose of extinguishing, but merely for the sake of the oil, the wick or the earthenware, he is liable.
Similarly, a person who moves a thorn four cubits in the public domain or extinguishes a coal so that many people will not be injured by it, is liable. Although the [usual] purpose [served] by extinguishing [the coal] or moving [the thorn] is not important to him, and his intent was merely to prevent injury, he is liable. The same applies in other similar situations.