The addition of 'sentimental' before 'value' clarifies that the value being referred to is emotional or sentimental, not monetary.

The word 'detergent' does not require the definite article 'a' when referring to the substance in general.

The preposition 'onto' is more appropriate than 'on' to indicate movement towards a surface.

The phrase 'with a similar design' requires the indefinite article 'a' to precede the adjective 'similar'.

The correct phrasal verb is 'make it up to you', not 'make it up for you'.

The phrase 'Of course' should be followed by a comma when it precedes a standalone clause.

The expression 'on earth' is idiomatic and does not require the definite article 'the'.

Replacing the comma with a period signifies the end of the sentence and provides the correct punctuation mark for the context.