Please let me do, V (sa) sete kudasai

it's polite from to gain some permission from some one. it's more polite than V.te kudasai.
this form also very often and usual used to gain permission from someone to do some thing. the basic formula is

"Verb Causative from+ てください"
Please let's me do Verb

here some example

私に払わせてください
watashini harawasete kudasai
please, let me pay...

疲れましたから　ちょっと休ませてください
tsukaremashita kara chotto yasumasete kudasai
cause i'm tired please let's me take a rest.

この設計はぜひ私にさせてくださいませんか
kono sekkei ha sehi, watashini sasetekudasaimasenka
please let's me do those design.

私に運転させてください
watashini unten sasetekudasai
please let's me drive.

後で戻って来ますから、ちょっと　このかばんを置かせてください。
ato modotte kimasu kara, chotto kono kaban wo okasetekudasai.
becouse i'll back, please hold the bag for me.

Posted in: intermediate grammar,V.sasete